As charming as they are, too many "nature" trips are pretentiously involved in removing you from the city and placing you in counterfeit communion with what passes for untouched land. Why bother with phony baloney when Miami has a gorgeous urban and wild landscape you can appreciate fully from the inside of a kayak? Launch yourself from Pelican Harbor Park into an emerald green wonderland populated with dolphins, manatees, and even the occasional alligator. Glide over fields of sea grass or stop at one of several postage-stamp-size islands as you paddle south toward the Julia Tuttle Causeway. Do observe signs that tell you to keep out of the bird rookeries, though, but draw close enough to enjoy the fowl cacophony. At the last island before the causeway, turn west toward Morningside Park. Either call it a day here (if you use a second vehicle), or do the return trip up the shoreline. At the mouth of the Little River, a quick detour around Belle Meade Island will let you peek at a few squawking human roosts as well. Then it's back over to Pelican Harbor and your own nest.