Maui, both second youngest and second largest of the Hawaiian Islands, is home to the world's largest dormant volcano, Haleakala, meaning "House of the Sun." Last erupting about 200 years ago, it makes up the eastern end of the island. Maui was formed by volcanic activity from Haleakala on the east and the West Maui Mountains to the west. The connecting isthmus between the two spots was formed from joining lava from both and gives Maui its nickname, the Valley Isle.

Cardigan sits on the west coast of Wales, where the River Teifi reaches the wide sweep of Cardigan Bay. At the heart of town stands Cardigan Castle, where battlements and gardens overlook the Teifi. The castle’s history includes the first recorded National Eisteddfod in Wales, a cultural competition of music, poetry and performance that still inspires events across the country.

Rábida Island is one of the most visually striking islands in the Galápagos, known for its deep red volcanic shoreline and quiet, unspoiled atmosphere. Located near the center of the archipelago, the island is geologically young, with iron-rich lava giving its beaches a dramatic rust-colored hue.

Puerto Rico, an unincorporated territory of the United States, is a Caribbean island rich in history, culture, and natural diversity. Its capital, San Juan, is a vibrant hub where centuries-old Spanish forts, pastel-colored colonial buildings, and lively plazas tell the story of the island’s complex past.

Bohol sits in the central Philippines, shaped by early Spanish contact and long-established rural communities. The island is known for its historic churches and for maintaining strong ties to agriculture and local governance, which have helped preserve a sense of continuity.