Portsmouth has a great system for welcoming cruisers. A member of PAYS (Portsmouth Association of Yacht Security) came out to meet us and guide us to a mooring ball ($10/day) and tie us on, take us to Customs and will arrange car rentals and tours for us. They also put on an all you can eat BBQ every Saturday night ($20/pp).
We took a tour up Indian River with Providence yesterday. The river is named for the Caribe Indians who first settled here. We saw kingfisher, yellow-crowned night heron, bananaquit and several hummingbirds.