The game can be restarted now.
Map - make the game freeze while you check the map. I found myself keeping the map open as I sailed to look for pattern matches and hitting sea monsters before I knew it
You can't actually see more on the map than you see on the regular screen. The map is for orientation. The sea monsters can only move in deep waters. So when you're near land (and some distance from deep water) you should be safe to look at the map as long as you want.
Dots - are they sandbars? rocks?
They are icebergs. Luckily you don't sink when hitting them!

The top and bottom parts of the map are arctic regions, so that's why there are icebergs and the land is a bit whitish.
Found all 3 now, nice ending. Getting insane when becoming rich
It's nice to be rich!

When your last treasure is on an iceberg you won't be rich for very long before you're very dead...

Sloooooow. It's an interesting concept, but it ends up being snail racing with only one snail.
Yeah, I'd like to add some more stuff. Like a compass that doesn't point north, some world maps to find, and some trees, rocks or buildings would be nice too. Will have to see how far I get.