Mariners Cove is to your LEFT immediately after the first traffic circle you will come to as you head north up Seaworld Drive. If you look to your left as you proceed around this traffic circle you will see Hog's Breath Cafe followed by the "MARINER'S COVE" sign board.
Turn left into the open carpark immediately after the Mariner's Cove sign board, before Marina Mirage.
When you enter the carpark you will see the back of a double story building at the far end of the carpark. The Gondolas are situated on the water immediately in front of this double story building.
After you have parked your car, walk past the RIGHT side of this building (using the pathway in between Mariner's Cove and Marina Mirage).