Fen Foundation Build 2020 After four successful builds in Cambodia the Fen Foundation is returning to Koh Rumdual in March 2020. Total cost (including your airfares, accommodation and building materials) will be approximately $2000. Interested in joining us? Register by filling in the form below and we will get back to you with more details. * indicates required field First Name:* Last Name:* Email:* Telephone:* Message: CAPTCHA Code:*