Groupon: 5 Day Channel Islands Expedition

As far as US National Parks go, this unique in every aspect. First no crowds. Your group will most likely be the only people you'll see for the first 2 days.
Second, you'll be surrounded by water! It takes 5 hours to get to your first destination and you'll sleep through the whole ride. Once we get there you'll fully understand what ocean wilderness in an archipelago is like.
Third the crew is diverse and passionate about everything that makes up the islands and the water surrounding them.
Fourth, no trip is alike. From the wildlife we see, to the weather we encounter each trip requires us to improvise and adjust to the elements and this means an expedition style trip that is the definition of unique.