Here are 5 sentences in English using "will" related to the beach:
1. I will go to the beach tomorrow to relax and soak up the sun.
2. The weather forecast predicts that the sun will shine brightly at the beach this weekend.
3. Will you join us for a beach picnic on Saturday afternoon?
4. If the waves are good, I will try my hand at surfing during our beach vacation.
5. Don't forget to bring sunscreen; it will help protect your skin from the strong sun at the beach.