If you get one of these, kind of interesting~

www.dailymail.co.uk/travel/travel_news/article-2880465/Glow-flow-Watersports-company-designs-paddles-fitted-LED-lights-illuminate-marine-life-surface-sea.html

It just needs a speargun attachment (flounder) and I'd be interested. Maybe a power head attachment...y'know - just in case?

Personally - I don't want to know what swims under me most times though.

Good concept.....hopefully not much wildlife to look at under your board here in early morning surf adventures.
A really bright LED light on the surf helmet would be another concept I would be really keen on though :)