We are in GC for a short time(730-330) and I'm looking into Stingray City with Captain Marvin. There are 2 times. 830 and 1115. Both listed as 2.5-2.75 dock to dock tours. Is it possible to be off the tenders and at the meeting place in time for the 830 tour? Or should I wait for 1115? Will that be cutting it close for the last tender? Ahh so confused.