There is no free parking at the Acquarium but there is a parking for a fee available across the street. If you are staying I Gatliurg also the trolley may be another option. All day pass for $2.00 or $.50 per ride. The trolleys have many stops across the city and by hotels and goes to the acquarium. Hope this helps.
There's a garage behind the aquarium. It's $6 for the day and provides shaded parking on the lower levels.
Angelica hit it on the head. We parked at the visitor center between Gatlinburg and pigeon forge and rode the tram.
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