Summerland Key is an unincorporated community in Monroe County, Florida, United States. It is located in the lower Florida Keys on the island of Summerland Key. Summerland Key is a bedroom community located almost mid-way between the "large" cities of Marathon and Key West. So, get off the highway and find your lost paradise. Stop and smell the ocean breezes from a harbor hidden deep on these scenic islands, away from the bustling tourism of the southernmost city. There are plenty of things to do on Big Pine and the Lower Keys. You can snorkel here, Anywhere! Whether it's the Looe Key Reef off Big Pine Key or in the backcountry that wraps around these scenic islands, stretching far and wide from the highway. The best way to see the Lower Keys may be under water. The paddling opportunities are endless, and so are the fishing hot spots. Largely undeveloped, there are back roads in the Lower Keys that take you to undisturbed places, wilderness boat launches, idyllic locales that few but the locals know.