A restaurant named Under, that is semi-submerged beneath the waters of the North Atlantic in Lindesnes near Kristiansand, some 400 km south west of Oslo, is pictured on March 19, 2019. - The restaurant that is situated five and a half meters below the surface of the sea is scheduled to open on March 21, 2019. (Photo by Tor Erik SCHRODER / NTB Scanpix / AFP) / Norway OUT

A restaurant named Under, that is semi-submerged beneath the waters of the North Atlantic in Lindesnes near Kristiansand, some 400 km south west of Oslo, is pictured on March 19, 2019. - The restaurant that is situated five and a half meters below the surface of the sea is scheduled to open on March 21, 2019. (Photo by Tor Erik SCHRODER / NTB Scanpix / AFP) / Norway OUT

Aerial view shows a restaurant named Under, that is semi-submerged beneath the waters of the North Atlantic in Lindesnes near Kristiansand, some 400 km south west of Oslo, on March 19, 2019. - The restaurant that is situated five and a half meters below the surface of the sea is scheduled to open on March 21, 2019. (Photo by Tor Erik SCHRODER / NTB Scanpix / AFP) / Norway OUT

Interior view of a restaurant named Under, that is semi-submerged beneath the waters of the North Atlantic in Lindesnes near Kristiansand, some 400 km south west of Oslo, pictured on March 19, 2019. - The restaurant that is situated five and a half meters below the surface of the sea is scheduled to open on March 21, 2019. (Photo by Tor Erik SCHRODER / NTB Scanpix / AFP) / Norway OUT

Interior view of a restaurant named Under, that is semi-submerged beneath the waters of the North Atlantic in Lindesnes near Kristiansand, some 400 km south west of Oslo, pictured on March 19, 2019. - The restaurant that is situated five and a half meters below the surface of the sea is scheduled to open on March 21, 2019. (Photo by Tor Erik SCHRODER / NTB Scanpix / AFP) / Norway OUT

Interior view of a restaurant named Under, that is semi-submerged beneath the waters of the North Atlantic in Lindesnes near Kristiansand, some 400 km south west of Oslo, pictured on March 19, 2019. - The restaurant that is situated five and a half meters below the surface of the sea is scheduled to open on March 21, 2019. (Photo by Tor Erik SCHRODER / NTB Scanpix / AFP) / Norway OUT

Interior view of a restaurant named Under, that is semi-submerged beneath the waters of the North Atlantic in Lindesnes near Kristiansand, some 400 km south west of Oslo, pictured on March 19, 2019. - The restaurant that is situated five and a half meters below the surface of the sea is scheduled to open on March 21, 2019. (Photo by Tor Erik SCHRODER / NTB Scanpix / AFP) / Norway OUT