We are off to CN for the first time in 4 days! DH and I bought Off with 32% of Deet. I'm trying to read more threads about Sand Fleas and the repellents. Not getting a definite answer. I saw the pictures of the bites. It's got me thinking...... I'm having a minor breakdown here. I'm scared of those Sand Fleas and I want to be able to come out on the beach at night too. What's the number repellent for us to get?!?!?!? Help me! I may have to lock myself up in our room at night.