Looking for fitness classes in Friday Harbor, WA?

Join a Group Class

At Island Strength & Movement, we offer a variety of classes designed to help you build strength, improve conditioning, and feel your best. Our group classes are a great way to stay consistent, build accountability, and be part of a supportive community. Whether you’re just getting started or looking to push yourself, all levels are welcome.

What to expect:

  •  Strength-focused, coach-led workouts

  • Scalable for all fitness levels

  • Supportive, community-driven environment

  • Consistent schedule to help you stay on track

Our Classes

  • A man in a black tank top and shorts pulls on a thick battle rope at a gym, with weightlifting equipment and a woman with a child in the background.

    Strength Foundations

    Strength Foundations is designed to help you build real strength with purpose, confidence, and proper technique. Using proven progressive programming, each class focuses on two foundational strength movements with an emphasis on proper form, progressive overload, and long-term results.

    You’ll learn how to safely and effectively build strength, lean muscle, bone density, stability, and overall fitness in a supportive environment. Each workout finishes with a conditioning or accessory circuit to improve endurance, mobility, and functional movement. Whether you’re new to strength training or an experienced lifter, every workout is fully scalable and modifiable for beginner, intermediate, and advanced athletes. This is smart, sustainable programming designed to meet you where you are — and continue challenging you as you grow stronger.

  • Four women exercising on spin bikes in a bright gym, smiling and laughing.

    Spin + Strength

    Get the best of both worlds in this fun, fast-paced 60-minute class that combines high-energy cardio on the bike with strength and core exercises off the bike. You'll kick things off with HIIT, Tabata, and hill climbs on the bike to challenge your endurance and burn maximum calories. Then, step off the bike for strength and core moves that target key muscle groups, building strength and stability. With great music to keep you motivated, you'll never believe how quickly 60 minutes can fly by. Perfect for anyone looking to boost cardiovascular fitness, tone muscles, and improve overall strength in one dynamic workout!

  • A woman in a black sleeveless shirt and black leggings is holding a dumbbell with both hands, performing a tricep extension exercise in a gym. Other women are visible in the background, also working out.

    W.O.W (Women on Weights)

    Super-set your way to a stronger, more confident you! Women on Weights is a strength-focused class designed specifically for women, helping you build lean muscle, boost metabolism, and increase overall strength. Using free weights, machines, and resistance bands, this class targets all major muscle groups with an emphasis on functional fitness. Along the way, you'll not only sculpt your body but also build supportive relationships with other women in a motivating, empowering environment.

  • A young woman lifting a barbell during a workout with a trainer observing in a gym.

    Youth Strength & Conditioning

    This class is designed to build strength, speed, and coordination for kids and teens aged 10-18. Through fun, dynamic exercises that focus on agility drills, bodyweight movements, and strength training, participants will enhance their overall athleticism, whether they are looking to improve performance in sports or just stay active and fit. Classes include a mix of cardio, resistance training, plyometrics, and flexibility work to ensure well-rounded development.

  • People working out in a gym, with one woman lifting weights and a trainer assisting, visible through a large mirror.

    Full Body Circuit Training

    Get the most out of your workout with our Circuit Training class, designed to improve strength, cardio, and endurance. Using timed intervals, you'll rotate through a series of exercises that target different muscle groups, combining both strength and cardio movements to keep you engaged and moving. This class is perfect for anyone looking to build strength, enhance cardiovascular fitness, and boost endurance in a quick, efficient workout. Whether you're new to fitness or looking for a solid, balanced routine, you’ll leave feeling energized and accomplished.

  • Women participating in a group yoga class performing Cobra pose on mats in a fitness studio.

    Yoga Flow

    Unwind and reset with this gentle yoga class designed to help you slow down and recharge. You’ll move through an easy, mindful flow, settle into restorative poses, and finish with a calming sound bath.

    Perfect for stress relief and recovery between workouts, this class supports flexibility, balance, and overall mobility. Whether you’re winding down after a long day or giving your body some well-deserved care, this class meets you where you are.

    All levels welcome. Leave feeling relaxed, grounded, and restored.

  • Rowing Strength + Technique

    This weekly small-group class is perfect for all levels—whether you’re brand new to the rower or looking to refine your technique and row more efficiently. Each session breaks down the fundamentals of rowing, including setup, stroke mechanics, timing, breathing, and pacing, while incorporating progressions to help you improve over time.

    With a small group format, you’ll receive individualized coaching, focused feedback, and a challenging full-body workout every week. You’ll build strength, improve endurance, and feel more confident and powerful on the rower.

    Rowing delivers a low-impact, full-body workout that engages up to 86% of your muscles in just 45 minutes, making it one of the most effective conditioning workouts you can do.

  • Core Sculpt & Strength

    Join us for a balanced, low-impact class that focuses on deep core strength, controlled sculpting movements, and intentional stretching to improve stability, posture, and mobility. This class is a great option for an active recovery day, helping your body move, strengthen, and reset without high impact or heavy loading.

    Expect a mindful, flowing workout that gently challenges your muscles, followed by lengthening stretches that leave you feeling stronger, more aligned, and refreshed for the rest of your day. All levels welcome, with options to meet you where you are.

  • Leg Day

    Lower Body Strength

    Fire up your metabolism and build strength by focusing on the biggest muscles in your body. This 45-minute, lower-body strength workout targets your quads, hamstrings, glutes, and calves to build strength, power, and long-term results. We now end with a quick HIIT finisher to elevate your heart rate and support cardiometabolic health. All fitness levels welcome. Train smart. Build strength that works for you.

  • Full Body Strength

    Start your weekend strong with this full-body strength training class. Using free weights and functional movement patterns, you’ll target all major muscle groups to build lean muscle, increase overall strength, and improve mobility. Expect a fast-paced, energizing environment that challenges your entire body without overcomplicating the workout. Designed for all fitness levels, this class offers modifications to support beginners and push advanced athletes—perfect for anyone looking to get stronger and feel empowered.

Check out our Summer class schedule

Monday:

  • 6:00 AM – Strength Foundations w/Josh

  • 8:30 AM - 40-Min HIIT w/Michelle

  • 3:00 PM - Youth Strength & Agility w/Josh (10+)

Tuesday:

  • 7:45 AM - Spin Therapy w/Andrew

  • 8:30 AM - Women on Weights w/Michelle (IS)

  • 9:30 AM - Women on Weights w/Michelle (IS)

  • 9:00 AM - Rowing Strength + Technique

  • 4:30 PM - Total Body Strength Circuit w/Annie

Wednesday:

  • 6:00 AM - Spin & Full Body Strength w/Robyn

  • 8:30 AM - Core Sculpt & Stretch w/Michelle

  • 3:00 PM - Youth Strength & Agility w/Josh (10+)

  • 6:00 PM - Strength Foundations w/Josh

Thursday:

  • 8:30 AM - Women on Weights w/Michelle (IS)

  • 9:30 AM - Women on Weights w/Michelle (IS)

  • 4:30 PM - Total Body Strength Circuit w/Robyn

Friday:

  • 6:00 AM - Strength + Conditioning w/Josh

  • 8:30 AM - Spin & Strength w/Robyn

  • 10:00 AM - Yinyasa Yoga w/Cassedy (IS)

  • 3:00 PM - Youth Strength + Agility (10+)

Saturday:

  • 9:00 AM - Full Body Strength w/Michelle

Sunday:

  • 9:00 AM - 45 min Lower Body Strength w/Robyn

  • All classes will be held at Core (777 Mullis St, Unit A) unless designated with (IS-for Island Strength

  • Classes subject to change

  • Check the weekly schedule at islandstrength.com or on the Glofox app and sign-up at least 24 hours in advance. 

Book a Class

We offer a variety of classes to help you get in shape, build strength and have fun. Group classes are the perfect way to create a routine, have accountability, and build a community of support. All levels are welcome!