Google offline maps has also come a long way. You should be able to download the whole region. Only issue I've had is that it does not know any addresses so you may want to pin any destinations prior...

Man - how can people treat the waterways so poorly? Glad to see someone doing something about it. Wish there were more efforts like this. Any way to donate to this or a similar cause?

Such a bummer. They were the pioneers before the internet, going places where few dared and providing some of the most amazing surf images. I guess they'll have to adapt to new forms of media. Hope...