We are going to be in Whistler for our first anniversary later in August and are wondering if anyone has any good recommendations for a good restaurant to celebrate at.

The restaurant at the Edgewater Lake resort is very nice, excellent food and located right on the lake. You can have drinks out by the lake and then come in for your meal.

Another possibility to consider is the Rimrock.
http://www.rimrockwhistler.com/

Depends on your food/ambiance preferences mostly. The Rimrock is excellent but if you want an intimate anniversary dinner it is very noisy there so I would save that for the next dinner.

I love the Trattoria di Umberto, Val d' Isere and Kypriaki for Italian, French and Greek food respectively.

Thank you. I've been leaning towards Rimrock. What is appropriate dress?