For boating, do not exceed 8x for the sake of image steadiness. 10x is too much for a boat.
Any 8x42 waterproof will work for almost any binocular application. Of those, I would rate the Bushnell E2 as my first choice in terms of optics. _________________ Thanks for posting with us
Joanie K - Your personal optics expert
Really your choice as to magnification, but an 8x42 will offer a wider field of view, more steadiness and slightly better image brightness than a 10x42 _________________ Thanks for posting with us
Joanie K - Your personal optics expert