Waterfront and outdoors
Swimming, boating, sailing, hiking and challenge activities vary by age and program.
2027 Summer Camps / Camp directory / YMCA Camp Onyahsa
Dewittville, Chautauqua Lake, New York
YMCA Camp Onyahsa
Day and overnight programs on Chautauqua Lake in western New York, with waterfront, sports and group activities.
Alongside regular overnight camp, shorter introductory stays and teen programs offer different age and independence requirements.
ACA-accredited
CAMP-NY-013
Courses & activities
Arts and camp life
Arts, sports, campfires and group activities form part of everyday camp life.
Camp features & life
Different lengths of stay
Regular stays generally run Sunday afternoon to Saturday morning; introductory options can be two or three nights, with between-session weekends arranged separately.
Who might enjoy this camp?
- Children interested in an introductory overnight experience or lakeside activities
Confirm the program group, language support and participation requirements before enrollment.
2027 dates & tuition
2027 dates & tuition
Specific 2027 sessions are expected to be announced in December 2026Day ages 5–12; regular overnight ages 7–14; short stays and teen programs have separate groups
Day programs, 2–3-night stays and approximately weeklong sessions; confirm by program
Contact an advisor
Contact an ASCWORLD advisor for 2027 fees and inclusions. Before payment, confirm the selected session’s written cancellation, refund, deposit and mandatory-charge terms.
Travel & participation
The camp is in western New York, not near New York City; families should plan onward ground travel.
Airport transfers require advance confirmation of the airport, arrival/departure times and additional charges.
Families visiting from overseas should confirm visitor eligibility, health paperwork and emergency-contact requirements.
Past-program photos (4)
Enquiries & Applications
Discuss this camp and participation arrangements with an ASCWORLD education adviser.
Enquiries & Applications