| Application deadline | February 12, 2027 (2027 cycle) | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Financial aid | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Expenses and aid conditions | Unconfirmed — check official site | 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 |
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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 | Unconfirmed — check official site | Unconfirmed — check official site |
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| Additional eligibility | Minimum age 15; Requirement: Rising juniors/seniors and at least 15 at start, without exceptions.; Requirement: English proficiency, TOEFL 90/equivalent or published waiver. | 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 | Ages 16–18; Residency: United States; Requirement: Be age 16-18 for the provider's high-school pathway; Requirement: Live in the United States under the current high-school page; Requirement: Apply individually or through an eligible school, early-college or dual-enrollment group; Requirement: Complete pre-travel preparation and all provider, school, guardian, passport, insurance and travel requirements; Requirement: Be able to participate safely in the residential, field-trip and outdoor-activity itinerary with requested accommodations; Exclusion: The site does not establish a general grade 9-12 rule or guarantee acceptance; Exclusion: College credit is arrangement-specific and not guaranteed to every participant; Exclusion: No current cohort, capacity, health, conduct or academic-admission criteria are publicly posted |
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| Session dates or duration | Unconfirmed — check official site | 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 |
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| Format | Online / In person | In person | Hybrid |
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| Housing and supervision | Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Marlborough, NEIA day/residential or online, not Wellesley | Little Switzerland, North Carolina | Gartan, County Donegal |
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| Selection and application | Unconfirmed — check official site | Selection: Registration-based 2026 session; capacity and selection method were not stated | Selection: ISAI accepts individuals and groups but does not publish current capacity, academic thresholds, selection criteria or acceptance rates for a public high-school cohort. |
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| Official sources | Source 1 · checked 2026-10-10Source 2 · checked 2026-10-10 | Source 1 · checked 2026-08-20Source 2 · checked 2026-08-20Source 3 · checked 2026-08-20 | Source 1 · checked 2026-08-22Source 2 · checked 2026-08-22Source 3 · checked 2026-08-22Source 4 · checked 2026-08-22 |
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