Vancouver gave me a wet welcome for the start of the holiday and showed the British side of its weather (i.e., frequent rain showers). So, the best choice for such weather is definitely a museum visit. A potentially interesting museum was not too hard to find: The UBC Museum of Anthropology.
The UBC Museum of Anthropology (http://www.moa.ubc.ca) offers a good, large collection of objects from the native cultures of British Columbia. Nice, comprehensive multi-media explanations of the artifacts are available.
p.s. Thanx to Mirjam and Jörg for joining me for the UBC museum. They also convinced me that I should join them and Frodu for the Bard-on-the-Beach Shakespeare Festival - so I got my share of cultural events for this year as well ;-)