What are good and cheap excursion in Bermuda?

There are lots of good excursions but not many things are cheap in Bermuda. The best bargain would be to buy at least a 3 day bus p. That will allow you unlimited rides on the buses and the ferry. It is very easy to get around Bermuda as there are only 3 main roads, North Shore Rd., South Shore Rd. (where the best beaches are and they are free) and Middle Rd. Maps are readily available and they show the bus routes and attractions along the way. Take the ferry from Hamilton to Kings Wharf, it's a beautiful trip. You can go to Spittle Pond, beaches and to the top of several lighthouses for free. The caves, Devil's Hole and the Maritime Museum are worth a visit.