At least 30 minutes early! The earlier you are the better seats are available. But you are allowed to get up and move around during the cruise so it's not necessary to get there super early.
When I got there which was a half hour before they ask you too there was already a line. They don't leave for another 45 minutes.
At least 30 mins
20 minutes is plenty of time, they board the boat by groups. We loved our trip and our kids enjoyed it so much.
The earlier the better. Part of boat shaded & part not so helps if want to have a choice
If you purchase your tickets online you should arrive 20 min before launch time. They are super friendly people, we LOVED our trip!! Just go to the check in window and give them your name. The super clean restrooms are next to the snack shop (or bring your own). This is a must do trip. We purchased a framed pix of us when we got back, well worth the $25. We are going agsin in Aug!!!!
They recommend that you arrive 30-45 mins before scheduled tour.
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