There is a lot of driftwood on Whidbey Island. Sometimes entire huge trees are washed up in winter storms and bleach in the summer sun.

The Bluff itself is primarily sand and gravel, with some clay layers and even compressed vegatation debris layers that must be pre-iceage. This entire area including Puget Sound and Seattle was covered with one mile of ice about 12,000 years ago. The glaciers carved Puget Sound up to 1500 feet deep and deposited much of the sand and gravel carried from the north and Canada. So Whidbey island is sort of Nature's Dump - but what a beautiful place.