Sign up at www.cruisecritic.com/rollcalls to connect with other passengers on your cruise; this is how I found my independent, two-day tour of Easter Island.
Easter Island Spirit Tours; www.easterislandspirit.com .I booked its A and B tours ($260 and $220, respectively).
Green Island Tours; www.gitourseasterisland.com/en . Similarly priced, and recommended by shipmates. Take $60 in cash to pay the fee for Rapa Nui National Park, which is the entire island.