Best local spot is La Govelle, located in Batz sur Mer, a few kilometers from La Baule. Never surfed there and have very few knowledge of surfing but this is the place best know in the region. Nothing to compare with south western waves though, but there you will find the best waves near from La Baule. Note that there are several rocks on the beach and people get hurt pretty frequently.
Equipment: usual stuff
There is a road made only for bicycles between La Baule and Guerrande. This is a great way to go to guerrande and visit surburbs without a car, and the trip is really nice. A good tip is to go to guerrande going throw marais salants to see how salt is extracted from the sea. View is very original. Then visit Guerrande and its typical old town, then come back with this special road made for byckes that always do down directly from Guerande to La Baule. To find the road, ask Tourist Information in Guerrande a map.
Equipment: You will need bicycles that you can rent in La Baule
Fishing with a net those little appetizers to fry in a pan.
Equipment: A square net as you can see on the picture and some sand and mussels paste to attract the litte fishes.