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Atlantic Gymnastics Training Center

150 Gosling Road, Portsmouth, NH, 03801

About this gym

Established in 1994 at its Portsmouth, NH location by owners Tony and Stephanie Retrosi, Atlantic Gymnastics has provided gymnastics education to seacoast-area families for over 30 years across two locations (Portsmouth and Dover). The gym offers preschool foundational classes starting at 18 months, recreational classes for students 1st grade and up, adaptive 1:1 classes, and competitive in-house and USAG/NGA competitive teams. Atlantic's philosophy emphasizes patience, perseverance, and building life skills through the sport, with staff-led, small-step instruction so every student experiences steady success.

Classes offered

Advanced 90mAdvanced In House 120mBeginner 60mBeginner 8+ 60mBeginner In House 90mBeginner/Intermediate 8+ 60mCoed Rec Gymnastics 60mGirls Beginner B CHART ONLY 60mGirls Beginner Rec 60mGirls Beginner Rec (9yrs +) 60mGIRLS REC Intermediate Rec 60mGoldfish 45mGuppies 45mIn House Advanced Rec Team 120mIn House Beginner Rec Team 90mIn House Intermediate Rec Team 90mIntermediate 60mIntermediate In House 90mTetra 60m

Class schedule

Monday
  • Goldfish
    8:30 AM–9:15 AM
    Drop-in OK
  • Goldfish
    10:30 AM–11:15 AM
    Drop-in OK
  • Goldfish
    2:00 PM–2:45 PM
    Drop-in OK
  • Tetra
    3:45 PM–4:45 PM
    Drop-in OK
  • Beginner
    3:45 PM–4:45 PM
    Drop-in OK
  • In House Beginner Rec Team
    3:45 PM–5:15 PM
    Drop-in OK
  • Girls Beginner Rec
    3:45 PM–4:45 PM
    Drop-in OK
  • Beginner
    4:45 PM–5:45 PM
    Drop-in OK
  • Goldfish
    5:00 PM–5:45 PM
    Drop-in OK
  • Girls Beginner Rec
    6:15 PM–7:15 PM
    Drop-in OK
  • In House Intermediate Rec Team
    7:00 PM–8:30 PM
    Drop-in OK
  • Girls Beginner Rec (9yrs +)
    7:30 PM–8:30 PM
    Drop-in OK
Tuesday
  • Guppies
    8:45 AM–9:30 AM
    Drop-in OK
  • Goldfish
    8:45 AM–9:30 AM
    Drop-in OK
  • Guppies
    9:45 AM–10:30 AM
    Drop-in OK
  • Goldfish
    9:45 AM–10:30 AM
    Drop-in OK
  • Coed Rec Gymnastics
    11:30 AM–12:30 PM
    Drop-in OK
  • Goldfish
    1:30 PM–2:15 PM
    Drop-in OK
  • Goldfish
    3:45 PM–4:30 PM
    Drop-in OK
  • Beginner
    3:45 PM–4:45 PM
    Drop-in OK
  • Guppies
    4:45 PM–5:30 PM
    Drop-in OK
  • In House Intermediate Rec Team
    4:45 PM–6:15 PM
    Drop-in OK
  • Tetra
    6:00 PM–7:00 PM
    Drop-in OK
  • Beginner
    6:00 PM–7:00 PM
    Drop-in OK
  • Beginner
    6:00 PM–7:00 PM
    Drop-in OK
  • Girls Beginner Rec
    6:15 PM–7:15 PM
    Drop-in OK
  • In House Advanced Rec Team
    6:30 PM–8:30 PM
    Drop-in OK
  • Intermediate In House
    6:45 PM–8:15 PM
    Drop-in OK
  • Advanced In House
    6:45 PM–8:45 PM
    Drop-in OK
  • Beginner
    7:15 PM–8:15 PM
    Drop-in OK
  • Beginner 8+
    7:15 PM–8:15 PM
    Drop-in OK
  • Intermediate
    7:15 PM–8:15 PM
    Drop-in OK
  • Girls Beginner Rec (9yrs +)
    7:30 PM–8:30 PM
    Drop-in OK
Wednesday
  • Guppies
    8:45 AM–9:30 AM
    Drop-in OK
  • Goldfish
    8:45 AM–9:30 AM
    Drop-in OK
  • Guppies
    9:45 AM–10:30 AM
    Drop-in OK
  • Goldfish
    9:45 AM–10:30 AM
    Drop-in OK
  • Goldfish
    1:30 PM–2:15 PM
    Drop-in OK
  • Intermediate In House
    3:30 PM–5:00 PM
    Drop-in OK
  • Goldfish
    3:45 PM–4:30 PM
    Drop-in OK
  • In House Beginner Rec Team
    4:30 PM–6:00 PM
    Drop-in OK
  • Tetra
    4:45 PM–5:45 PM
    Drop-in OK
  • Beginner
    4:45 PM–5:45 PM
    Drop-in OK
  • Girls Beginner Rec
    4:45 PM–5:45 PM
    Drop-in OK
  • Tetra
    6:00 PM–7:00 PM
    Drop-in OK
  • Beginner
    6:00 PM–7:00 PM
    Drop-in OK
  • Girls Beginner Rec
    6:00 PM–7:00 PM
    Drop-in OK
  • In House Advanced Rec Team
    6:15 PM–8:15 PM
    Drop-in OK
  • Beginner
    7:15 PM–8:15 PM
    Drop-in OK
  • Beginner/Intermediate 8+
    7:15 PM–8:15 PM
    Drop-in OK
  • Advanced
    7:15 PM–8:45 PM
    Drop-in OK
Thursday
  • Guppies
    8:45 AM–9:30 AM
    Drop-in OK
  • Goldfish
    8:45 AM–9:30 AM
    Drop-in OK
  • Goldfish
    9:45 AM–10:30 AM
    Drop-in OK
  • Guppies
    9:45 AM–10:30 AM
    Drop-in OK
  • Goldfish
    1:30 PM–2:15 PM
    Drop-in OK
  • Beginner In House
    3:30 PM–5:00 PM
    Drop-in OK
  • Advanced In House
    3:30 PM–5:30 PM
    Drop-in OK
  • Goldfish
    3:45 PM–4:30 PM
    Drop-in OK
  • Girls Beginner Rec
    3:45 PM–4:45 PM
    Drop-in OK
  • Tetra
    4:45 PM–5:45 PM
    Drop-in OK
  • Beginner
    4:45 PM–5:45 PM
    Drop-in OK
  • Beginner
    4:45 PM–5:45 PM
    Drop-in OK
  • Beginner
    6:00 PM–7:00 PM
    Drop-in OK
  • Beginner 8+
    6:00 PM–7:00 PM
    Drop-in OK
  • Intermediate
    6:00 PM–7:00 PM
    Drop-in OK
  • Tetra
    6:00 PM–7:00 PM
    Drop-in OK
  • Girls Beginner B CHART ONLY
    6:00 PM–7:00 PM
    Drop-in OK
  • Girls Beginner Rec
    6:00 PM–7:00 PM
    Drop-in OK
  • Beginner
    7:15 PM–8:15 PM
    Drop-in OK
  • Beginner 8+
    7:15 PM–8:15 PM
    Drop-in OK
  • GIRLS REC Intermediate Rec
    7:15 PM–8:15 PM
    Drop-in OK
Friday
  • Guppies
    8:45 AM–9:30 AM
    Drop-in OK
  • Goldfish
    8:45 AM–9:30 AM
    Drop-in OK
  • Guppies
    9:45 AM–10:30 AM
    Drop-in OK
  • Goldfish
    9:45 AM–10:30 AM
    Drop-in OK
  • Goldfish
    10:45 AM–11:30 AM
    Drop-in OK
  • Goldfish
    10:45 AM–11:30 AM
    Drop-in OK
Saturday
  • Goldfish
    8:30 AM–9:15 AM
    Drop-in OK
  • Guppies
    8:45 AM–9:30 AM
    Drop-in OK
  • Tetra
    9:45 AM–10:45 AM
    Drop-in OK
  • Beginner
    9:45 AM–10:45 AM
    Drop-in OK
  • Girls Beginner Rec
    9:45 AM–10:45 AM
    Drop-in OK
  • Girls Beginner Rec
    10:30 AM–11:30 AM
    Drop-in OK

Membership & pricing

45-Minute Class Monthly

$117/mo

Monthly tuition for a weekly 45-minute class (preschool levels). Cost varies slightly by number of class days in the calendar month.

60-Minute Class Monthly

$121/mo

Monthly tuition for a weekly 60-minute class. Cost varies slightly by number of class days in the calendar month.

90-Minute Class Monthly

$166/mo

Monthly tuition for a weekly 90-minute class (advanced/in-house team levels). Cost varies slightly by number of class days in the calendar month.

120-Minute Class Monthly

$208/mo

Monthly tuition for a weekly 2-hour class (top in-house team levels). Cost varies slightly by number of class days in the calendar month.

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