Welcome to Isla de la Luna
The island is way smaller, way drier and way less touristed than its solar counterpart, and if you only have a day, you are better off heading to Isla del Sol. That said, for slightly more adventurous experiences this is a good alternative, and it’s easy enough to tack a half-day here onto your Isla del Sol trip.
Most boats arrive on the eastern side of the island, where you'll find a visitor center, hostel, restaurant and artisan stands. On the other side of the hill, the island’s main settlement has basic hostels, a soccer field and a small chapel.