Welcome to Key Allegro Marina! We are perfectly located on the South Texas Gulf Coast. The Marina lies on the sheltered shores of Aransas Bay just off the Intracoastal Waterway at mile marker 521, with easy access to bay fishing and the Gulf of Mexico. Key Allegro Marina offers covered and uncovered deep berth wet slips in a range of sizes. Additionally covered cradled boat lifts are available up to 24,000 pounds. We have also made some recent updates to our facilities. The ship store has been expanded; the bath house has been remodeled. Electrical service has been upgraded on the docks and recently and we have recently put in some more lifted slips under the covered shed. Wi-Fi is also now available for Key Allegro Marina Tenants.