I can't write a whole description of the place, but you may visit their website to learn more about this field station
We took a boat out of Sierpe, down through the mangroves along the river, and out into the Pacific ocean. Bit of rough water right where the river meets the sea, but our boat captain circled until he saw a gap in the wave pattern and got us through with minimal bashing about. Kudos to him, as he really knows how to read the water.
At Campanario it is a wet landing, as in there is no dock they just back the boat up to the black sand beach and you jump out.