Grotta Smeralda (Emerald Grotto)

If you can’t make it to Capri’s fabled Grotta Azzurra (or prefer not to sacrifice an afternoon to the lengthy entrance procedure), consider visiting its green-tinted counterpart in Conca dei Marini, between Positano and Amalfi. An elevator leads into the grotto, itself an interesting destination for Gaudí-like stalactite formations. Small boats take visitors for a short glide across the luminous water. It’s touristy—expect singing gondolieri and silly stories of archaeological “treasures” found beneath the shallow surface—but unlike the Blue Grotto, this one can be visited quickly, en route to Amalfi or Ravello.