Long Key Marinas 69501 Overseas Hwy Bay Side Centrally located with easy access to both the Atlantic Ocean and Florida Bay, this marina and apartment rental is the perfect spot for your Florida Keys vacation. Long Key FL Marinas Sea Bird Marina www.seabirdmarina.com Florida Keys Long Key Marathon boat rentals boat ramp boat storage marina vacation rental bait tackle fishing sailing boats Florida Keys Long Key Marathon boat rentals boat ramp boat storage marina vacation rental bait tackle fishing sailing boats Business Reviews Sea Bird Marina Testimonials