Arecibo Observatory

On a mountainous and somewhat isolated (but fairly well signposted) road, the Arecibo Observatory is home to the world’s largest radio telescope, operated by SRI International, USRA and UMET, under a cooperative agreement with the National Science Foundation. The visitor’s center is decent with working bilingual exhibits. There are no tours of the telescope itself, however you can view the telescope from a platform and view a free informative video. Bring an umbrella, in case of rain. Also be sure to have comfortable walking shoes for the 500 steps up the mountain. Don’t let the 500 steps up the mountain put you off if you have a disability etc. – if you are unable to walk that distance, you can get a ride up (and down) with a security guard on request.

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  • Direction: approximately ten miles south of town
  • Open Hours: Mon-Sun Winter/Summer 9AM-4PM, Wed-Sun 9AM-4PM, and most holidays
  • Checkin: no info
  • Checkout: no info
  • Price: Adults $10, children and seniors $6


  • Address: no info
  • Phone Number: +1 878-2612
  • FAX: no info
  • URL:
  • Email: no info

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