We did this exact dingy trip in 2011 on our first visit to the islands. Even with their 4 person center console dingys, going out can be really rough if there is much wind/waves. The ride up the Drake channel can be real rough. The hike and the swim out to Water Lemon versus getting beat up in the dingy is the question. We've done both and aren't in the greatest shape either and I would vote for the hike and swim. My back didn't tolerate the jarring in the dingy well at all.