Spain's Prime Minister Pedro Sanchez speaks during a news conference after a meeting with King Felipe at Marivent Palace in Mallorca as part of their annual summer meeting in the island, Spain, August 3, 2021. REUTERS/Enrique Calvo

Spain's Prime Minister Pedro Sanchez speaks during a news conference after a meeting with King Felipe at Marivent Palace in Mallorca as part of their annual summer meeting in the island, Spain, August 3, 2021. REUTERS/Enrique Calvo

Spain's Prime Minister Pedro Sanchez speaks during a news conference after a meeting with King Felipe at Marivent Palace in Mallorca as part of their annual summer meeting in the island, Spain, August 3, 2021. REUTERS/Enrique Calvo

Spain's Prime Minister Pedro Sanchez speaks during a news conference after a meeting with King Felipe at Marivent Palace in Mallorca as part of their annual summer meeting in the island, Spain, August 3, 2021. REUTERS/Enrique Calvo

Spain's Prime Minister Pedro Sanchez speaks during a news conference after a meeting with King Felipe at Marivent Palace in Mallorca as part of their annual summer meeting in the island, Spain, August 3, 2021. REUTERS/Enrique Calvo

Spain's King Felipe waits for Prime Minister Pedro Sanchez at Marivent Palace in Mallorca as part of their annual summer meeting in the island, Spain, August 3, 2021. REUTERS/Enrique Calvo

Spain's King Felipe waits for Prime Minister Pedro Sanchez at Marivent Palace in Mallorca as part of their annual summer meeting in the island, Spain, August 3, 2021. REUTERS/Enrique Calvo

Spain's King Felipe welcomes Prime Minister Pedro Sanchez to Marivent Palace in Mallorca as part of their annual summer meeting in the island, Spain, August 3, 2021. REUTERS/Enrique Calvo

Spain's King Felipe welcomes Prime Minister Pedro Sanchez to Marivent Palace in Mallorca as part of their annual summer meeting in the island, Spain, August 3, 2021. REUTERS/Enrique Calvo

Spain's King Felipe welcomes Prime Minister Pedro Sanchez to Marivent Palace in Mallorca as part of their annual summer meeting in the island, Spain, August 3, 2021. REUTERS/Enrique Calvo

Spain's King Felipe welcomes Prime Minister Pedro Sanchez to Marivent Palace in Mallorca as part of their annual summer meeting in the island, Spain, August 3, 2021. REUTERS/Enrique Calvo

Spain's King Felipe welcomes Prime Minister Pedro Sanchez to Marivent Palace in Mallorca as part of their annual summer meeting in the island, Spain, August 3, 2021. REUTERS/Enrique Calvo

Spain's King Felipe welcomes Prime Minister Pedro Sanchez to Marivent Palace in Mallorca as part of their annual summer meeting in the island, Spain, August 3, 2021. REUTERS/Enrique Calvo

Spain's King Felipe welcomes Prime Minister Pedro Sanchez to Marivent Palace in Mallorca as part of their annual summer meeting in the island, Spain, August 3, 2021. REUTERS/Enrique Calvo

Spain's King Felipe welcomes Prime Minister Pedro Sanchez to Marivent Palace in Mallorca as part of their annual summer meeting in the island, Spain, August 3, 2021. REUTERS/Enrique Calvo

Britain's Prince Charles waves to well-wishers after a visit to the NAFC Marine College, at Port Arthur, Scalloway, Shetland, after meeting with staff and students and trialing the Naval simulator, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles takes a look inside the marine engine workshop during a visit to the NAFC Marine College, at Port Arthur, Scalloway, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles meets representatives from the RNLI during a visit to the NAFC Marine College at Port Arthur, Scalloway, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles takes a look inside the marine engine workshop during a visit to the NAFC Marine College, at Port Arthur, Scalloway, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles officially opens the Lerwick Harbour and Scalloway Fish Markets at Shetland Seafood Auctions Ltd at Lerwick Fishmarket, Lerwick, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles takes a look inside the marine engine workshop during a visit to the NAFC Marine College, at Port Arthur, Scalloway, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles takes a look inside the marine engine workshop during a visit to the NAFC Marine College, at Port Arthur, Scalloway, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles visits the NAFC Marine College, at Port Arthur, Scalloway, Shetland, to meet with staff and students and try the Naval simulator, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles visits the NAFC Marine College, at Port Arthur, Scalloway, Shetland, to meet with staff and students and try the Naval simulator, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles officially opens the Lerwick Harbour and Scalloway Fish Markets at Shetland Seafood Auctions Ltd at Lerwick Fishmarket, Lerwick, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles officially opens the Lerwick Harbour and Scalloway Fish Markets at Shetland Seafood Auctions Ltd at Lerwick Fishmarket, Lerwick, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles officially opens the Lerwick Harbour and Scalloway Fish Markets at Shetland Seafood Auctions Ltd at Lerwick Fishmarket, Lerwick, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles has a dram of whisky before officially opening the Lerwick Harbour and Scalloway Fish Markets at Shetland Seafood Auctions Ltd at Lerwick Fishmarket, Lerwick, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

A fisherman takes a picture of Britain's Prince Charles as he officially opens the Lerwick Harbour and Scalloway Fish Markets at Shetland Seafood Auctions Ltd at Lerwick Fishmarket, Lerwick, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles officially opens the Lerwick Harbour and Scalloway Fish Markets at Shetland Seafood Auctions Ltd at Lerwick Fishmarket, Lerwick, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles officially opens the Lerwick Harbour and Scalloway Fish Markets at Shetland Seafood Auctions Ltd at Lerwick Fishmarket, Lerwick, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles officially opens the Lerwick Harbour and Scalloway Fish Markets at Shetland Seafood Auctions Ltd at Lerwick Fishmarket, Lerwick, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles officially opens the Lerwick Harbour and Scalloway Fish Markets at Shetland Seafood Auctions Ltd at Lerwick Fishmarket, Lerwick, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles officially opens the Lerwick Harbour and Scalloway Fish Markets at Shetland Seafood Auctions Ltd at Lerwick Fishmarket, Lerwick, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles officially opens the Lerwick Harbour and Scalloway Fish Markets at Shetland Seafood Auctions Ltd at Lerwick Fishmarket, Lerwick, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles has a dram of whisky before officially opening the Lerwick Harbour and Scalloway Fish Markets at Shetland Seafood Auctions Ltd at Lerwick Fishmarket, Lerwick, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles has a dram of whisky before officially opening the Lerwick Harbour and Scalloway Fish Markets at Shetland Seafood Auctions Ltd at Lerwick Fishmarket, Lerwick, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles has a dram of whisky before officially opening the Lerwick Harbour and Scalloway Fish Markets at Shetland Seafood Auctions Ltd at Lerwick Fishmarket, Lerwick, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles has a dram of whisky before officially opening the Lerwick Harbour and Scalloway Fish Markets at Shetland Seafood Auctions Ltd at Lerwick Fishmarket, Lerwick, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles has a dram of whisky before officially opening the Lerwick Harbour and Scalloway Fish Markets at Shetland Seafood Auctions Ltd at Lerwick Fishmarket, Lerwick, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles has a dram of whisky before officially opening the Lerwick Harbour and Scalloway Fish Markets at Shetland Seafood Auctions Ltd at Lerwick Fishmarket, Lerwick, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles has a dram of whisky before officially opening the Lerwick Harbour and Scalloway Fish Markets at Shetland Seafood Auctions Ltd at Lerwick Fishmarket, Lerwick, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles has a dram of whisky before officially opening the Lerwick Harbour and Scalloway Fish Markets at Shetland Seafood Auctions Ltd at Lerwick Fishmarket, Lerwick, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles visits the Lerwick Harbour Fish Market, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles visits the Lerwick Harbour Fish Market, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles visits the Lerwick Harbour Fish Market, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles visits the Lerwick Harbour Fish Market, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles visits the Lerwick Harbour Fish Market, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles visits the Lerwick Harbour Fish Market, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles visits the Lerwick Harbour Fish Market, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles visits the Lerwick Harbour Fish Market, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles visits the Lerwick Harbour Fish Market, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles visits the Lerwick Harbour Fish Market, Shetland, on the second day of a two-day visit to Scotland, Britain July 30, 2021. Jane Barlow/Pool via REUTERS

Britain's Prince Charles visits Caithness Beach Clean Group at Scrabster Beach, in Thurso, Caithness, as part of a two-day visit to Scotland, Britain July 29, 2021. Paul Campbell/Pool via REUTERS

Britain's Prince Charles meets with founder Dorcas Sinclair and her husband Allan Sinclair during a visit to Caithness Beach Clean Group at Scrabster Beach, in Thurso, Caithness, as part of a two-day visit to Scotland, Britain July 29, 2021. Paul Campbell/Pool via REUTERS

Britain's Prince Charles visits Caithness Beach Clean Group at Scrabster Beach, in Thurso, Caithness, as part of a two-day visit to Scotland, Britain July 29, 2021. Paul Campbell/Pool via REUTERS

Britain's Prince Charles visits Caithness Beach Clean Group at Scrabster Beach, in Thurso, Caithness, as part of a two-day visit to Scotland, Britain July 29, 2021. Paul Campbell/Pool via REUTERS

Britain's Prince Charles visits Caithness Beach Clean Group at Scrabster Beach, in Thurso, Caithness, as part of a two-day visit to Scotland, Britain July 29, 2021. Paul Campbell/Pool via REUTERS

Britain's Prince Charles visits Caithness Beach Clean Group at Scrabster Beach, in Thurso, Caithness, as part of a two-day visit to Scotland, Britain July 29, 2021. Paul Campbell/Pool via REUTERS

Britain's Prince Charles visits Caithness Beach Clean Group at Scrabster Beach, in Thurso, Caithness, as part of a two-day visit to Scotland, Britain July 29, 2021. Paul Campbell/Pool via REUTERS