For coastal sites opinions ranged from 0 to as many as 10,000 bathers, with over half of all 150 responses lacking a specific number, and no clear range identified.
Ar gyfer safleoedd arfordirol, roedd y farn yn amrywio o 0 i gynifer â 10,000 o ymdrochwyr, gyda dros hanner y 150 o ymatebion heb nodi nifer benodol na unrhyw amrediad clir.