Green turtle and tracks on Tortuguero Beach 
Measuring turtle carapace length – Ralph Pace 
Green turtle returning to water – Ralph Pace 
Green turtle returning to ocean – Ralph Pace 
Research Assistant with green turtle – Ralph Pace 
Green turtle nesting – Ralph Pace 
Measruing green turtle carapace – Ralph Pace 
STC beach clean-up – Ralph Pace 
Tortuguero Beach – Ralph Pace 
STC Research Station – Ralph Pace 
STC station grounds – STC 
STC station grounds – STC 
STC Scientist Residence – STC 
STC Dormitory – STC 
Tortuguero canals – Ralph Pace