In mid-July sometime, 2 of us are thinking of taking the ferry from Copper Harbor, stay one night overnight in Rock Harbor campground, and returning back on the next day's ferry. Unfortunately I don't have more time to add an extra day.

Couple of questions:
1) I'm assuming there are capacity ...

Anyone else getting an error when they click on "I Agree Book Now" button at the bottom of this page: https://www.isleroyaleboats.com/day-trips.html

Based on past year experiences, when approximately does the ferry schedule release and is bookable for the 2020 season?

Bonus question if you're from the area and know from past experience - approx when would the schedule release and be bookable for national park boat tours for Voyaguer Lakes ...