Jamaica isn’t the place you’d immediately associate with troglodyte luxury, but The Caves hotel in Negril – which can count Naomi Campbell and Harrison Ford among its former guests – has been built into the limestone cliffs that skirt the coastline. To ratchet up the romance factor, you can have your very own cave reserved for a private romantic dinner, while the specialist rum bar also has its own caverns. If you fancy a swim, you can jump off the cliffs into the sea, where rafts await for gentle lolling about on.