Planetario de Cozumel Cha'an Ka'an
The Maya were centuries ahead of their time in understanding the heavens. This newest addition to Cozumel's sightseeing roster mixes modern-day with pre-Columbian knowledge of astronomy, with a bit of Maya legend peppered in. A separate admission apart from the daily schedule admits you to the Velada Astronómica, hourlong stargazing programs held Thursday and Saturday nights at 8—weather permitting, of course.