Arecibo Observatory


Visitors can learn about the planets, asteroids and comets, and how research is conducted on the atmosphere, the Solar System and the Universe in general. Visitors will also enjoy the movie “The Arecibo Observatory: Beyond the big dreams” which presents an overview of the science done in the Arecibo Observatory and will also be able to enjoy the view of the telescope from the observation deck located 367 feet above the 1,000-foot reflector dish located in a natural sinkhole in the northern area of Puerto Rico.

Route 625 Bo. Esperanza,
Arecibo, PR 00612
787-878-2612 Ext. 346 & 312

Wednesdays to Sundays from 10:00 a.m. to 3:00

Adults $12.00, Children (5-12 years) and Seniors $8.00
Reservations are required for school groups, college campuses or summer camp groups. For this type of groups, a special price is offered. No reservation is required for family visits.

From the beginning, there were certain requirements for the site. It had to be located in a US territory since the Department of Defense gave the financial support. Also, it had to be near the equator line, since there, radar capable of studying the ionosphere could also be used to study nearby planets which pass overhead. The Arecibo site offered the advantage of being located in Karst terrain, with large limestone sinkholes which provided a natural geometry for the construction of the 305-meter reflector.

A faith point of view…