One thing I love about Baler? it's not commercialized---yet. Sabang Beach is the main beach resort of Baler. It is a sanctuary to surfing enthusiasts. We visited Sabang Beach on a Saturday. There's not much people around, considering that it's Holy Week and people are expected to go out on vacation. Swimming is only allowed until 6 o' clock in the evening. At night, we can hear the loud roar of waves that could be more than 3 feet high.
I guarantee you, it is safe just don't go beyond the perimeter line.
For Baler visitors, Sabang beach is a good destination for summer it is near the town proper. Entrance is for free. You can go camping. But they don't have cottages and picnic tables along the beach. You can bring your own food and of course, guests should keep their space clean and in order all the time. There are designated trash cans or it's best to bring your excess back home. They have small restaurants and eateries that serve good food for a reasonable price.
Try Bay's Inn, we love it!