The town of Sooke is basically a starting point for trips farther west up the island and is quickly becoming a larger community as the city quickly expands. For things to do in Sooke, I would visit the Sooke Region Museum (http://www.sookeregionmus...), take a trip out Whiffen Spit, especially during a tide shift where you can watch the seals eat salmon and fish as they are washed out of the basin, and hike the trails of East Sooke Park, which is across the Sooke Basin from the town of Sooke.
