More info from Daily DX and ARRL

Plans are to depart Mangareva Island, Gambier Islands, French Polynesia via the Braveheart on February 5, 2008 and head for Pitcairn Island; this trip normally takes about 36 hours. The ops will spend a few hours on Pitcairn before take another 36 hour trip boat ride to Ducie Island; they plan to arrive at sunrise on February 9. They hope to be up and running within 24 hours. The team needs to be back on Mangareva by March 3. If all goes well, including the weather, they will have VP6 on the air for as long as 19 days. There is a slight chance of a short visit to another uninhabited island if things on Ducie slow down. Henderson Island (also VP6, not a separate DXCC entity) is the only island on the way to and from Ducie Island.

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Also, i found some other info on Ducie, with pictures here