Redfish Bay is a 50-square-mile minor bay straddling Aransas and Corpus Christi Bays on the Texas Gulf Coast. The bay is characterized by a maze of shallow tidal flats, twisting channels, mangrove estuaries, and wide-open lakes, with average depths in some popular areas being as shallow as one foot, providing clear water ideal for wildlife viewing. Nearly the entire bay falls within the Redfish Bay State Scientific Area, where a special regulation protects extensive seagrass meadows from being uprooted or destroyed. The most prominent feature for paddlers is the Lighthouse Lakes Paddling Trail, a system of four marked loops ranging from 1.25 to 6.8 miles that meander through coastal marshes and a black mangrove estuary, offering views of the historic 1857 Lydia Ann Lighthouse on North Harbor Island. This trail system, the first mapped paddling trail on the Texas coast, is considered beginner-accessible due to its calm, protected, shallow waters and clear signage, though wind conditions can change quickly.

Primary launch points are concentrated along the Redfish Bay Causeway on State Highway 361, approximately six miles south of Aransas Pass. Specific access points include Lighthouse Lakes Park along the Aransas Channel and Hampton's Landing Marina & RV, which provides a boat ramp. Palm Harbor Marina and RV Park near Rockport provides access to Estes Cove via paddling across the Intracoastal Waterway. The area is tidal, and paddlers are advised that tides and currents can change quickly, making it essential to check conditions before departure. Early morning or late afternoon are recommended for lower winds and higher wildlife activity. The bay is exposed to wind, which can create challenging conditions, and paddlers must be mindful of boat traffic, particularly when crossing the Aransas Channel or the Intracoastal Waterway. The intricate network of waterways can be disorienting, so carrying a map or GPS is strongly advised to avoid getting lost.

Wildlife is abundant and includes dolphins, a wide variety of shorebirds such as herons, and marine life like red drum and spotted seatrout. The islands within the bay are also inhabited by reptiles, including western diamondback rattlesnakes. Facilities are limited at launch points, but amenities like parking and boat ramps are available at designated areas. Several local outfitters in Aransas Pass and Port Aransas offer guided tours, kayak rentals, and shuttle services, which can be particularly valuable for beginners or those unfamiliar with the area's complex waterways. Paddlers should note that the bay is part of a protected scientific area and must stay on marked channels to minimize impact on the sensitive seagrass habitat.