So, you really like Canada Weather & Radar, but you happen to be on the water. It sounds like you need a new app! Hence: Canada Marine.
Using the same format that has generated hundreds of 5-star ratings for Canada Weather, Canada Marine takes Environment Canada’s excellent collection of marine forecasts and data and puts them in an easy-to-read format. Browse marine zones by map, use your GPS location to find marine zones near you, link directly to Environment Canada radar, maps, and other resources, and more. From a developer you know using forecasts you trust, look no further than Canada Marine. As far as I can tell, it's the only Canadian Marine forecast app on the market.