Considering to use my Delta miles to go to some interesting places Polynesia / Micronesia / Melanesia.

Not interested in Hawaii; New Zealand is planned for a separate trip (paid).

Delta's mileage chart to Pacific region lists some quite obscure places (like Pitcairn Island) but there are no flights to most of them. What I've found so far is Fiji (NAD with Korean Air from ICN) and Palau (ROR with Delta from NRT). Are there other places in the region reachable by Skyteam?

I'd like to squeeze the most value of my miles by going to a place where regular fares are high, which is not overrun with tourists, where budget accommodations are available (as my primary chain - Marriott - doesn't have properties there), and where I can enjoy white sand, blue ocean and palms. Is that possible?