How to pronounce “sargassum” in English

Or diver B could play a sound, a sargassum whistle.

And then diver A and diver B would be notified in the earphone that that whistle was made, sargassum or scarf.

And every once in a while, they'll drop it and so we're hopeful that they're maybe understanding that I've asked for the scarf, not sargassum or the rope, et