In keeping with the rest of the game, it's a bit of a surreal solution. The map shows you where you need to go.
Needless to say, I've examined the map, read the map, followed the map and several other weird and wonderful commands (no, it's not edible), but drawn a blank. Or so I thought.
I went where the map indicated using a Scott Adams' style command and, blow me down, I ended up back at the beach. Now I've finished the game with a less than optimal score and am wondering what I've missed.