Celebrity Xpedition - Northern versus Southern Loop

[Stonewolf Cruiser]

Does anyone have recent experience with Celebrity Xpedition cruises in the Galapagos Islands?

I am trying to decide between Northern Loop and Southern Loop.  Each cruise would be 7 nights and I am looking to do this in May 2022.

I am not so interested in snorkeling opportunities - my focus is more on shore exploration and wildlife.

Thanks for any help.