The start of the path is quite easy to find in Friar’s Bay. Just walk North past Kali’s Beach Bar and past Friar’s Bay Beach Bar until you see a path marked by orange arrows. It should lead up a hill. (There appears to be another path that goes around the rocks lower down, but I wouldn’t recommend taking that one.)
Once you crest the hill, the still somewhat clearly marked path opens wide in all directions. You get a clear view of the ocean on your left and grassy hills on your right.
Cross through a fence. Walk past some old ruined condos. Meet up with a road. Wait, a road? I could have driven here? Yeah, well… the walk is pleasant and you’re at Happy Bay before you know it.
And talk about “happy”! This secluded bay is often almost devoid of the throngs which plague some St. Martin beaches like Orient Bay. Here, there are practically no facilities (though they have been talking for a long time about adding some) so it just doesn’t attract crowds! It’s not as expansive as my favorite beach on St. Maarten (Long Bay) though…
Anyway, once you take your pick of the many excellent spots to spend the day on this beach, it’s just a matter of deciding how much you’re going to take off. ;-)