We are going to head to the Galapagos in late Jun/early July and want to do a 10-12 day cruise, and honed in on the Alya. My husband prefers the combination of A & C routes which leaves out Isabella altogether. What are the "must" sees on Isabella that we need to consider if we can live without seeing them? Also, any comparisons of the Alya to say the Endemic, Elite or Ocean Spray? We definitely want a small boat and the "luxury" ones seem to best suit our occasion. Thanks very much for any and all feedback!