Grand Mariner on Longboat Key is a condo building in Longboat Key, Florida, built between 1999 and 2008. It currently has no homes for sale. The homes range in size from 2,928 ft2 to 3,674 ft2. It is located in Manatee County.

Grand Mariner is an exclusive waterfront condominium community on Longboat Key, Florida, offering residents direct canal access to Sarasota Bay through a private gated deep-water yacht harbor with boat slips for large vessels. On-site amenities include a heated pool, spa, tennis courts, state-of-the-art fitness center, and a clubhouse with gathering spaces overlooking the lagoon, perfect for relaxation and social events. Surrounding the property, visitors can enjoy pristine private beaches for activities like snorkeling, fishing, and boating, along with nearby upscale shopping and dining at St. Armands Circle, plus cultural spots like the Mote Marine Laboratory.

Boat Facilities Boat Ramp Cats Allowed Clubhouse Dock Dogs Allowed Elevator(s) Fishing Fitness Fitness Center Gated Golf Carts OK Gulf Access Maintenance Grounds Marina Pool (Community) Recreation Area Recreation Facilities Security Sidewalks Spa/Hot Tub Storage Street Lights Tennis Court(s) Water Access Waterfront