Corcovado/ Sirena station May to Nov $115. IVA 13% tax included. Dec to April $125 IVA 13% Tax included Includes: Park entrance fee, bilingual ICT certified guide with a telescope, boat, captain and lunch. Departure: 6:00 am. Return:12:30 pm. The tour begins with a 1 hour 15 minute boat trip from Drake Bay to the Sirena Biological Station. Once there you will do a 4 hour leisurely...