Donations

Every contribution to the CDK fund, in any amount, is used to expand knowledge about karst and support the defense and protection of its resources. Your donation is tax deductible in Puerto Rico and in the United States, for residents of any state. You can make yours here.

Make a donation with ATH Mobile

When entering the ATH Mobile application, select the option to make a donation and search for CDK.


* Citizens of Karso (CDK) is a non-profit, tax-exempt entity under Section 501(c)(3) of the U.S. Internal Revenue Code and Section 1101 of the Puerto Rico Internal Revenue Code. By making an annual donation, you help us fulfill our mission and implement our conservation projects.