Explore experiencestreckly. Grassy Flats Resort & Beach ClubMarathon, FLResortsWaterfront Island Resort Retreat in Marathon, FL Address58182 Overseas Hwy, Marathon, FL 33050, USAPhone(305) 998-4590Websitewww.grassyflats.com/?utm_source=GMB&utm_medium=GMB&utm_campaign=GMB&utm_content=GMB&utm_term=GMB