Travel Agenda: National Maritime Museum Cornwall; San Francisco's Asian Art Museum; Amanyara resort

Today: Throw light on the towers that protect ships from hazardous coastlines: the National Maritime Museum Cornwall in Falmouth opens an exhibition entitled "Lighthouses: Life on the Rocks". Running for two years, it will display a four-ton optic, reconstructed living quarters, artefacts, photos and narratives (

This week: The Asian Art Museum in San Francisco is staging a Shanghai exhibition. Opening on Friday (until 5 September), it will show art documenting the city's changing face over the last century ( If you can't make it to carnival in Brazil, then get into the spirit in London. The London School of Samba has a parade on Friday, followed by a masked ball and a five days of live music at Guanabara bar in Theatreland (

In the diary: The luxurious Amanyara resort in the Turks and Caicos hosts world free-diving champion Tanya Streeter from 20-27 February. She will take guests on free-diving sessions and share her experiences of diving with humpback whales (