The World's largest & most sensitive radiotelescope in Arecibo is located 28.7 miles / 42 min from Hyatt Place Manati. Explore education exhbits which fall under the scrutiny of our radio telescope at the Angel Ramos Foundation visitor center. Guest receive a $20.00 Food & Beverage credit valid at the hotel, per stay, and one complimentary appetizer card, per stay, at Longhorn Steakhouse Manati. Arecibo Observatory visitor schedule: Monday - Sunday / 9:00am - 4:00pm. Closed: Good Friday, Mother's Day, Father's Day, Thanksiving, Christmas, New Year & Three Kings Day. Traveling with a group? Contact the hotel sales department for special pricing at (787) 854-1000 and select option #2.