We did this tour when we were on a cruise back in 2018 and really enjoyed it. I saved the site. But I think the site I saved is old because when I went to fill out the information to make a reservation request, the automated fill in dates stop at 2020.
I tried to look it up in Cruise Critic but couldn't find anything. I also checked Trip Advisor, but the last T.A. review was back in 2017.
So it looks like there isn't a tour any longer and I'm out of luck, but I'm posting this question "just in case".
Our cruise doesn't leave until September, but I like to plan ahead. (Yep. I'm "one of those").
I'll keep checking back for a couple of weeks to see if there's any reply, but then I'm giving up.
Kris