Brier Island, Nova Scotia is a neat spot. The most westerly point of the province, you have to drive all the way down a narrow strip of land -- Digby Neck -- and take two quick ferries to get there. The island itself is relatively small and is made of basalt. I think basalt is one of the neatest geological formations you can come across, it seems to have quite a bit of interesting geometry and texture. Plus it comes from lava. I will go out on a limb here and say that this stuff is tholeiitic basalt but since my schooling was more about trees and less about geology I'm probably mistaken.
It would've been nice to have had more time to explore the island, but this time of year the days are short and the light a little harsh. I think I'd like to go back in the spring or summer and walk the island. The hostel there is apparently pretty good.