The Thames hands you most of what a gym charges for. Flat towpaths for intervals. Slopes up towards Richmond Hill or Greenwich Park when you want your lungs to complain. Benches for step-ups and dips, railings for balance work, and long open stretches where nobody minds you doing walking lunges at eight in the morning.
What the river doesn't give you is a plan. So here's one: four weeks, three sessions a week, about 45 minutes each. No equipment beyond a mat or towel, a water bottle, and shoes you don't mind getting damp. Three sessions a week is enough to make a difference and few enough that you'll actually finish the block.
Before Week One: Pick a Spot and Take a Baseline
Choose two locations within walking or cycling distance — one flat, one with a slope or a set of steps. A flat stretch near Bishop's Park, the wide paths around Battersea, or a quiet bit of towpath near Barnes works for circuits. Add somewhere with a climb: the rise from the river towards Greenwich, the slope up to Richmond Hill, or any bridge staircase you can repeat.
Then run a baseline test. It takes fifteen minutes, and it's the only way to know in four weeks whether any of this worked. Write the numbers down somewhere you'll find them.
- Push-ups: as many clean reps as you can in 60 seconds (on a bench if floor reps aren't there yet).
- Squats: reps in 60 seconds, thighs to roughly parallel.
- Plank: how long you hold a straight line from shoulders to heels.
- Step-ups: reps in 60 seconds onto a bench, alternating legs.
- Brisk mile: walk a measured stretch of towpath as fast as you can without running.
The Shape of Every Session
Warm-up: eight minutes, no shortcuts
Cold muscles and cold riverside air are a bad combination. Start with three minutes of brisk walking or easy jogging, then work through arm circles, hip circles, leg swings front to back and side to side, ankle rolls, and ten slow bodyweight squats. Finish with two rounds of twenty seconds of marching on the spot with high knees and twenty seconds of glute bridges on the grass. You should feel warm, not tired.
The circuit: 25 to 30 minutes
Work for 40 seconds, rest for 20, and move through the list below. Three rounds in weeks one and two, four rounds from week three. Set a timer on your phone and put it somewhere you can see it.
- Squats, feet shoulder-width, chest up
- Push-ups — hands on a bench or step if needed
- Reverse lunges, alternating legs
- Step-ups onto a bench, alternating legs
- Bench dips, hands behind you, elbows tracking back
- Plank shoulder taps, hips as still as you can keep them
- Bear crawl or a slow, controlled walk on all fours
- High knees or a short sprint up the path
If you have access to a sturdy low bar or railing that you've tested with your full weight, inverted rows are the best pulling movement you'll find outdoors. If not, skip it — the circuit is unbalanced without rows, so add a second round of dips and a set of reverse flys with a resistance band if you have one.
Cool-down: five minutes
Walk for two minutes. Then stretch your hip flexors, hamstrings, calves and chest, holding each for twenty to thirty seconds. Breathe out as you sink into each position. Don't chase a deep stretch on cold legs.
Weeks One and Two: Build the Base
Your only job here is consistency and clean technique. Keep the work window at 40 seconds, don't add rounds, and don't add weight. If 40 seconds of push-ups is five reps, that's fine — do those five well and hold a plank for the rest of the interval.
Session one is the full circuit. Session two is the same movements with hill or stair intervals in place of the last two stations: eight rounds of 30 seconds hard uphill, 60 seconds easy down. Session three is the circuit again, but with the timings reversed — 20 seconds of work, 40 seconds of rest — so you can push harder on each movement. Take a rest day between sessions where you can.
Week Three: Add Density, Not Complexity
Now make it harder in one direction. Pick two of these and leave the rest alone:
- Cut the rest to 15 seconds and keep the same work time.
- Add a fourth round.
- Slow every lowering phase to three seconds.
- Pause for two seconds at the bottom of each squat and push-up.
- Turn lunges and step-ups into single-leg work for the full interval.
- Wear a rucksack with a couple of water bottles inside for squats and step-ups.
Doing all six at once is how people end up limping for a week. Two is plenty.
Week Four: Retest and Set Up the Next Block
Run the baseline test again on your first session of the week, then keep the other two sessions light — one easy circuit at 30 seconds of work, one long riverside walk or jog. Compare the numbers, not the way you feel in the moment.
Most people who train three times a week for a month pick up a few reps here and a bit of plank time there. If nothing moved, look at sleep and how hard you're actually working in those 40 seconds before you decide the plan failed.
Practicalities: Weather, Crowds and Recovery
The river wind cuts through thin layers. Wear one more than you think you need, keep a dry top in your bag, and pick grass over tarmac for anything on your hands and knees after rain. Give yourself a ten-minute rule: if you're still miserable after ten minutes outdoors, go home and do a shortened circuit indoors. You rarely will.
Towpaths get busy, especially on weekends. Keep to one side, step off the path for cyclists and runners, keep dogs close during the high-knee station, and don't lay a mat across a thoroughfare. Early mornings along the river are quieter and the light is better.
Leave 48 hours between hard sessions, aim for a proper meal with protein within an hour or two of finishing, and treat a sore day as a walking day rather than a training day. If you're new to exercise, pregnant, recovering from injury, or managing a heart or joint condition, check with a doctor or qualified trainer before starting — and stop if something hurts sharply rather than aches.
Keeping It Going After Four Weeks
Repeat the block with one change: five rounds instead of four, a heavier rucksack, or a new route with a longer hill. Book the sessions into your week like appointments, and find someone to train with — a partner on the towpath at 7am is worth more than any plan on paper. After a month, the river stops being a location and starts being the place you train.
Photo: Ketut Subiyanto / Pexels
