just one of them takes place again this weekend.

The six Heritage Bermuda organisations first featured a mutual membership day last year, as part of Heritage Month celebrations.

Organisers say the event was successful "in raising community awareness of the collections and displays of the six heritage organisations''.

This year the members -- the Bermuda Aquarium & Zoo, The Bermuda National Gallery, the Bermuda National Trust, The Bermuda Underwater Exploration Institute, Fort St. Catherine and the Maritime Museum -- are excited about the chance to introduce more people to "the exciting stories Bermuda's museums have to tell''.

The special takes place tomorrow and Sunday, with Tucker House and Verdmont -- normally closed on Sunday -- open for the event.