halocline
Contributor
... the simple fact is that many recreational divers dive only/mainly in warmer "vacation" waters where the challenges of buoyancy control with thicker skin protection, low visibility, unpredictable currents etc may be more formidable than first imagined.
I think you meant to say the opposite here. Your statement is that warmer vacation waters have more formidable challenges. You might want to edit.
Sure, colder water, less vis, more thermal protection, etc...is more challenging. Just like climbing on snow and ice is more challenging than on dirt paths, skiing on steep moguls is more challenging than gentle flat slopes, biking on hills as opposed to flat roads, etc.. What's your point?