Winter and early spring are optimal times to visit Everglades National Park. From December through April, the dry season, temperatures range from an average of 53 to 77 degrees. Visitation is higher at this time of year, too. Many ranger programs and tours are offered.
Between May and November, the rainy season, temperatures reach an average of 90 degrees with high humidity. Expect afternoon thunderstorms and bugs, bugs, bugs. Park visitation is lower at this time of year, so not all ranger programs and tours are available.
Beyond the National Park Service's Everglades site (nps.gov/ever
), check out:
Fodor's online has a chapter on Shark Valley describing bicycle and tram tours.