I visit Boca Raton a couple of times a year to visit family. We always come here. They have an area with different ponds filled with various marine life. They have a boardwalk that stretches several acres. You can walk through it and see the natural plants and wildlife. There's a platform you can climb and see a spectacular view. They also have butterfly gardens with many different varieties of butterflys. They don't charge admission, but do ask for donations.
more