I purchased a dive float like this when I was diving in Hawaii:
https://www.amazon.com/DiveSmart-Vi...SDFA9GKEJ2Z&psc=1&refRID=TY4GXXTZASDFA9GKEJ2Z
It deflates to almost nothing and has a pocket in the bottom you fill with water to help keep it upright.
I just went to a 'reasonable' depth and anchored the sucker. As long as you enter and leave the water with the float, the Scuba police aren't going to be able to prove anything.
https://www.amazon.com/DiveSmart-Vi...SDFA9GKEJ2Z&psc=1&refRID=TY4GXXTZASDFA9GKEJ2Z
It deflates to almost nothing and has a pocket in the bottom you fill with water to help keep it upright.
I just went to a 'reasonable' depth and anchored the sucker. As long as you enter and leave the water with the float, the Scuba police aren't going to be able to prove anything.