I cannot guarantee things since I was not on the Fascination, I was on the Legend on 1/20. Hopefully you will not have to tender at all. Cozumel has a number of docks available. If you do, I don't think you should have too much trouble. It doesn't look like it is that long of a tender ride to the dock. You should be okay. Your excursion ticket should instruct you on where to report to at what time. You should be fine.