Honshu the economy along the northwestern Sea of Japan coast is largely based on fishing and agriculture. The island is linked to the other three major Japanese islands by a number of bridges and tunnels. Its climate is humid and mild. The island is roughly long and ranges from wide, and its total area is , 60% of the total area of Japan, making it slightly larger than Great Britain. Its land area has been increasing with land reclamation and coastal uplift in the north, but global sea level rise has diminished these effects. Honshu has of coastline. Mountainous and volcanic,
Gotland island, and it is the largest island fully encompassed by the Baltic Sea (with Denmark's Zealand at the Baltic's edge). With its total area of the island of Gotland and the other areas of the province of Gotland make up 0.8% of Sweden's total land area. The province includes the small islands of Fårö and Gotska Sandön to the north, as well as the Karlsö Islands, (Lilla and Stora) to the west, which are even smaller. The island of Gotland has an area of , whereas the province has [ of land excluding the lakes and rivers]. The population is