| Application deadline | Unconfirmed — check official site | January 26, 2027 (2027 cycle) | Unconfirmed — check official site |
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| Cost | Unconfirmed — check official site | Catalog terms: Free attendance; check separate expenses; 2027: Unconfirmed — check official site | Catalog terms: $790–$5,925; 2027: Unconfirmed — check official site |
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| Financial aid | Unconfirmed — check official site | Unconfirmed — check official site | Catalog terms: Scholarships for families for whom the sliding-scale discount is not adequate: Amount: Unconfirmed — check official site; 2027: Unconfirmed — check official site |
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| Expenses and aid conditions | Last year's cycle (2026): SPROG 2026 ticket: $0. Participants could select the USD 0 option with the published SPROG26 code.; Optional contribution: $0–$200. Voluntary contribution toward Sierra Club's costs.; Four nights of dorm lodging and bedding: $0. Provided by the program.; Program meals: $0. All meals were provided.; 2027: Unconfirmed — check official site | Unconfirmed — check official site | Catalog terms: Deposit to reserve a place: Amount: Unconfirmed — check official site. Refund of tuition (less the deposit) for cancellations up to 90 days before the program.; Scholarships for families for whom the sliding-scale discount is not adequate: Amount: Unconfirmed — check official site; Optional pickup from Keene, Concord bus station or Manchester Airport (each way): $20–$160. Pickup from Bellows Falls, VT bus and train is free.; Optional student overnight fee: $125. Per night.; Optional equipment rentals (per program): $5–$20; 2027: Unconfirmed — check official site |
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| Stipend or pay | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Eligibility | Unconfirmed — check official site | Grade 12 when applying; check the provider's rules for graduating seniors | Unconfirmed — check official site |
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| Additional eligibility | Ages 15–25; Requirement: Be age 15–25 by August 5, 2026; Requirement: Attend the full five-day residential session; Requirement: Provide emergency, medical, dietary, accessibility, travel, and room information; Requirement: Sign the participant waiver; Requirement: Obtain a parent signature if under 18; Exclusion: Applicants younger than 15 or older than 25 for the 2026 session | Minimum age 17; Citizenship: US citizen; Citizenship: US permanent resident; Requirement: Open to students currently in grade 12 when applying; Requirement: Enrolled at least half-time as a high school senior and graduated before the internship starts; Requirement: 18 years old by September 30, 2027; a graduating senior who is 17 on June 1, 2027 must have a permanent home address within 40 miles of an NIH campus; Requirement: Permanent residents must attend or be accepted to a U.S. educational institution | Ages 6–18; Requirement: Meet the exact age range for the selected program; published 2026 programs ranged from ages 6-10 to ages 15-18; Requirement: Show genuine personal interest and excitement about attending; Requirement: Be physically ready to participate in every required aspect of the selected program; Requirement: Ensure the family understands Kroka's philosophy, handbook, outdoor living, risk, and community approach; Requirement: Complete an introductory program or demonstrate prior technical experience when an advanced expedition requires it; Requirement: Be accepted based on fit, safety, capacity, and group composition; Exclusion: Registration and deposit do not guarantee acceptance; Exclusion: Students who cannot safely complete essential physical, technical, behavioral, medical, or community components without an agreed accommodation; Exclusion: Applicants outside the selected program's age band or without a stated technical prerequisite; Exclusion: Some rites-of-passage programs use gender-specific cohorts; verify the current inclusion policy directly |
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| Session dates or duration | Last year's cycle (2026): Starts August 5, 2026; Ends August 9, 2026; 0.7 weeks; 2027: Unconfirmed — check official site | Unconfirmed — check official site | Catalog terms: 1–3 weeks; 2027: Unconfirmed — check official site |
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| Format | In person | In person | In person |
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| Housing and supervision | Residential. Supervision and housing details: Unconfirmed — check official site | Non-residential. Supervision and housing details: Unconfirmed — check official site | Unconfirmed — check official site |
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| Location | Little Switzerland, North Carolina | Bethesda, MD | Marlow, NH |
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| Selection and application | Selection: Registration-based 2026 session; capacity and selection method were not stated | Selection: There is no centralized selection. Individual NIH PIs search applications, interview candidates, choose interns and supply funding; satisfying minimum eligibility does not guarantee a match. Application materials: Personal statement; Two references who submit letters of recommendation; Outreach to NIH Principal Investigators and interviews with them | Selection: Fit- and safety-reviewed rather than first-come alone; Kroka may decline applicants, maintain waitlists, prefer group balance, and require prerequisites for technical programs. |
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| Official sources | Source 1 · checked 2026-08-20Source 2 · checked 2026-08-20Source 3 · checked 2026-08-20 | Source 1 · checked 2026-10-24Source 2 · checked 2026-08-22 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-08-21 |
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