The GSR has everything you may want to do. Casino, escape room, arcade, yogurt beach, food, pool, etc. One stop shop for activities
Round Hill beach is our favorite beach to go to in Tahoe. It is a smaller beach but has a bar and snack bar right on the beach. Plus they have air conditioned restrooms not just port-a-pottys which is super nice.
Shopping outlet if you are looking for somewhere to shop around. There is also a movie theater, escape rooms, pottery, food, and a casino within the shopping center