We had a reservation for the 12:45 boat. Our preceeding activity ran late (out of our control) and we got to the check in at 12:40--in time to make our reservation. They wouldn't let us on our boat and while we waited in line they booked 2 people ahead of us (people with no reservation) on the next boat. We booked the 5:30 boat, drove 1 hour to do some hiking, and came back for check in at 5:00 to find they had cancelled the rest of the trips that day, without letting us know not to bother with the drive all the way back out there. Not great.
If you own or manage Ice Lagoon - Zodiac Boat Tours, register now for free tools to enhance your listing, attract new reviews, and respond to reviewers.