If you make it to the Wharf, stop by to see the raccoons, just down from Crabby Jim's They are very adorable!
Cannery Row has a good nightlife, on Saturdays anyway.......It helps when you go with some friends too. Everyone is very friendly. Sly McFly's is a must and you can start out at the Cannery Row Brewing Company!
Of course the beach and the ocean are amazing there as well. Beautiful sunsets and the beach presents itself as a wonderful venue to run or walk on. My suggestion if you like the beach is to stay at the Beach Resort on Sand Dunes Dr. in Monterey. Request ocean view and walk right out onto the beach! Have fun and enjoy all nature and people have to offer in the hub of beauty and fun!