The Oceana marine binocular from Celestron is a waterproof binocular designed for marine use but it's also useful for various land based observations as well.
This feature-packed model includes an illuminated compass for direction finding, reticle for distance measurement, and a convenient center focus system. Maximum optical performance is appreciated with the BaK-4 prisms and fully multi-coated optics for ultra sharp images with high contrast and resolution. It has a large 50 mm objective lens to offer maximum image brightness even in low light conditions, like dusk and dawn.

7x50
Center Focus for quick and easy focusing
Fully Multi-Coated for maximum resolution and high contrast views
Waterproof and Fogproof with nitrogen purging for all weather protection
Rubber covered for protection and a firm grip
Illuminated Compass built-in for direction location
Reticle built-in for determining distance and size of objects
Calculator Dial for quick distance measurement
Aluminum Body
Tripod adapter fitting for tripod mounting for increased stability
Soft Carrying Case for protecting the binoculars
Limited Lifetime Warranty