Aitchison, Catherine J. Birder Guide to Vancouver and the Lower Mainland. Vancouver: Whitecap Books, 2001. This spiral-bound field guide details 350 species recorded in the region, as well as provides detailed directions to the best viewing spots.
Bodegom, Volker. Bicycling Vancouver. Edmonton, Alberta: Lone Pine Publishing, 1992. Now a little outdated, this book is still a good resource for trail descriptions, road logs, and maps of cycling routes throughout the city.
Pratt-Johnson, Betty. 101 Dives from the Mainland of Washington and British Columbia. Surrey, British Columbia: Heritage House Publishing, 1999. This book and its companion volume, 99 Dives from the San Juan Islands in Washington to the Gulf Islands, are the best sources of detailed information on diving in British Columbia.
Vancouver Natural History Society. Wilderness on the Doorstep: Discovering Nature In Stanley Park. Vancouver: Harbour Publishing, 2006. A complete guide to the natural history of Stanley Park [1].
Varner, Collin, and Christine Allen. Gardens of Vancouver. Vancouver: Raincoast Books, 2000. Details public and private gardens throughout the city using color photographs, planting plans, and descriptions of behind-the-scenes workings.
Links:
[1] http://www.moon.com/destinations/vancouver-victoria/vancouver/sights/stanley-park