It can be worth it to hike up the hill for a better view of the bay. Many of these spots are on private land. Be sure to doublecheck before you leave the shoreline. Some folks don't mind respectful visitors, others prefer their privacy.
It can be fun and educational for families to try and build rafts using what is found on the beach. Most beaches are littered with rope, cord, and other materials that make raft assembly possible. You'll also discover a lot of garbage.
Sangster Island on the south end of Lasqueti is a sandstone island with no residence. It can be a good place to camp because the beach consists of smooth stones or flat sandstone.
Being close to shore makes paddleboarding pretty accessible. It'd be one heck of journey to go the full way around the island, but it's certainly not impossible.
Many folks prefer to take casual trips around the shore. This can be fun, though it takes a lot of effort to get on the island. It's a better idea to come with a plan.