WarmWaterDiver
Contributor
When we visited Hawaii we were not informed of any dive flag / float requirements for all the shore diving we on The Big Island, Maui, nor Kauai either.
My middle aged ears still work well enough to give me an extra reminer to really - I mean really - look up and all around above me to see where the engine noise may be coming from well before coming anywhere close to the surface. Boats, jet skis, wave runners, etc. all fit in this category. My attention to specific wavelenths corresponding to the wife's vocal range may have diminished over the years due to what she terms as 'selective husband hearing' but the vibrations transmitted by motorized water craft under way don't fall in that band width.
It's the non-motorized water craft that post the larger hazard IMO. You don't get any engine noise warning from surfboards (also present at Cane Bay where we're primarily diving this week while on St. Croix as well as on Maui), diveyaks, kayaks, sailboards, and kiteboards etc. No engine noises to really, really remind one of their potential presence and this is the primary factor for us to no longer visit BON with the objective of diving spots like Atlantis from shore that we enjoyed a lot in prior trips.
There's been plenty of coverage of all angles of this issue regarding SMB's, water craft, etc. on the Bonaire Talk board for years, including variants on what folks do from watercraft when seeing either a diver down float or inflated SMB both in the lower 48 and abroad, as to whether that honestly contributes more to diver safety or safety hazard based on what the people operating the water craft motorized or not do in response to seeing such devices.
My middle aged ears still work well enough to give me an extra reminer to really - I mean really - look up and all around above me to see where the engine noise may be coming from well before coming anywhere close to the surface. Boats, jet skis, wave runners, etc. all fit in this category. My attention to specific wavelenths corresponding to the wife's vocal range may have diminished over the years due to what she terms as 'selective husband hearing' but the vibrations transmitted by motorized water craft under way don't fall in that band width.

It's the non-motorized water craft that post the larger hazard IMO. You don't get any engine noise warning from surfboards (also present at Cane Bay where we're primarily diving this week while on St. Croix as well as on Maui), diveyaks, kayaks, sailboards, and kiteboards etc. No engine noises to really, really remind one of their potential presence and this is the primary factor for us to no longer visit BON with the objective of diving spots like Atlantis from shore that we enjoyed a lot in prior trips.
There's been plenty of coverage of all angles of this issue regarding SMB's, water craft, etc. on the Bonaire Talk board for years, including variants on what folks do from watercraft when seeing either a diver down float or inflated SMB both in the lower 48 and abroad, as to whether that honestly contributes more to diver safety or safety hazard based on what the people operating the water craft motorized or not do in response to seeing such devices.