$70 is simply too much to charge for this program and will probably and, unfortunately, not do so again.
The Ecology Department's program is not $70. That's probably what some website is charging to sign you up.
From the official post to the Department's turtle program Facebook page, here's what they actually say and actually charge:
The same applies this year as in last years program with the Ecology Dept. (This is different than "tours" that are being offered by .com's or tourist tour sites - please be aware) -
These are 'donations' to the Cozumel Turtles directed to only the Ecology Dept.
same price for kids or adults... its a great experience for everyone.
There will be bracelets given for the following by Ecology Dept staff and their volunteers for the following:
$40 - for assisting with the nesting as the turtles are laying eggs between May and July - You Must Make Contact with us via this site to schedule - Meeting point will be as Mezcalitos at the most Eastern point of the road - at approximately 10.30 pm (which is why an appt is necessary)for approximately - you MUST have your own transportation too and from - Sunday and Monday are best days at this time - to assure this experience.... approximately 1 to 2 hours - with Ecology Dept. staff and volunteers for the Ecology Dept.
$25 - for the Search and Rescue experience (which won't happen until near July until mid November) - as the turtles will be hatching - you can help with the digging into the nest to rescue only the baby turtles that may not have made it out of the nest unless you did assist. - again you must have your own transportation and the location is not ever specific - We will announce more soon as the TURTLE TRAILER will open at that time to communicate specific information and give educational orientation.
$15 - to attend the release at the beach where a 'natural' nest will be releasing around sunset nearly every night (Again, this won't happen until near July till mid November) - this is a guided experience with volunteers of the ecology dept. - others who do not purchase the bracelets will be asked to watch only from the road side. Additional contributions will be asked at your desire to the volunteers of the Ecology Dept. only -
T Shirts and other accessories will be offered and announced soon
So, $40 tops, or $25 for the release program which is what most people do because the season for it runs much longer.
I'd pay $70, though. The money goes to an underfunded and very important program.