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River Fit 2025: HIIT It Hard

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Fiedler Field, Charles River Esplanade
Boston MA, United States
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Esplanade Association
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Event description

Get ready to sweat, move, and build strength on the Charles River Esplanade with this high-energy Bodyweight HIIT Class Series provided to you by Caroline at CarolineRufoWellness!

This 60-minute class combines bursts of high-intensity cardio with bodyweight strength movements to help you torch calories, boost endurance, and improve functional fitness—no equipment needed.

Each session is designed to challenge all fitness levels, offering modifications to meet you where you are and push you to where you want to go. Expect a dynamic mix of full-body circuits, explosive intervals, and active recovery to keep your heart rate up and your muscles working.

Perfect for busy professionals, weekend warriors, and anyone looking to get a powerful workout using just your body.

We encourage participants to registered before every class and to bring their own yoga mat. Pre-registration is highly recommended in order to receive timely updates. Please cancel if you can no longer attend. High Intensity Interval Training will take place every Thursday at 6pm on the following dates:

  • September 25

  • October 2

  • October 9

This event is part of our River Fit Fall Series. Learn more and register for other events in this series here.

Event Cancellation

In the event of extreme weather or other hazardous conditions, the Esplanade Association will email all participants and post a cancellation notice. Please follow our social media accounts Facebook page (@EsplanadeBoston) / Instagram (@EsplanadeInBoston) to keep up to date about potential class cancellations.

Location Information & Directions

NOTE: There is NO PARKING on the Esplanade. Please plan to arrive via one of the options below:

WALKING
If entering by foot, you can take one of many footbridges to enter the park. They are all noted on this map. Fiedler Field is closest to the Arthur Fiedler Footbridge which is located between Beacon Street and Beaver Place, adjacent to David G Mugar Way. Once in the Esplanade, continue walking straight past the Esplanade Playspace. There will be a footbridge across from the Playspace. Continue across that footbridge, Fiedler Field will be across from a dock next to a statue of head.

MBTA
Fiedler Field is a ten-minute walk from the Arlington MBTA Station (Green Line) and a ten minute walk from the Charles / MGH MBTA Station (Red Line). Find all of the nearby stations on this map.

BLUE BIKES
Pick up a Bluebike at any station around Boston, Brookline, Cambridge and Somerville and return to a station located conveniently near the Hatch Shell. Find locations on the System Map or mobile app. The closest Blue Bikes station is located where Beacon Street meets David Mugar Way, in front of Beacon Street access to the Arthur Fiedler Footbridge. 

PARKING (outside of park)
Recommended parking locations include Newbury Street lots or the Boston Common Garage. 

RIDE SHARE
Please direct rideshare vehicles to drop you off on Beacon Street near Arlington Street. Cheers is a good reference spot. Once you’ve been dropped off, enter the park on foot via the Arthur Fiedler Footbridge, located between Beacon Street and Beaver Place, adjacent to David G Mugar Way.  

About Caroline

Caroline Rufo is a Certified Personal Trainer, wellness coach, and corporate fitness specialist with a passion for helping people move better, feel stronger, and perform at their best—both physically and mentally. With a Ph.D. in Chemistry and a background in biotech strategy, Caroline brings a science-based, results-driven approach to every workout.

Known for her high-energy coaching style and smart programming, Caroline specializes in functional training that builds strength, endurance, and resilience—without the need for fancy equipment. Her signature bodyweight HIIT classes combine intensity, creativity, and motivation to help participants push past their limits and unlock real, sustainable progress.

About the Esplanade Association

The Esplanade Association (Esplanade.org) is a nonprofit organization that works to revitalize and enhance the Charles River Esplanade, sustain its natural green space, and build community in the park by providing educational, cultural, and recreational programs for everyone.

Stay up to date with the Esplanade by following us: Facebook (@EsplanadeBoston),Instagram (@EsplanadeInBoston).Visit Esplanade.org/Events to learn about upcoming events and programs on the Esplanade.

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Fiedler Field, Charles River Esplanade
Boston MA, United States
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Hosted by Esplanade Association