I will be on the Freedom arriving at Grand Cayman the first week of June. We have an excursion scheduled for 9 a.m., but transport will pick us up at 8:30. Ship is due to arrive at 8 a.m. We will be riding waverunners to stingray island. Anyway, my question is this. How early do I need to be ready in order to catch the first tender off the ship? Thanks!