TUMBL×HARD AND SMART
Our first event · 31 May 2026

A morning in the pool at Oasis.

Twelve swimmers, two coaches and a lot of coffee afterwards. Everyone left with video of their own stroke and something specific to work on.

When
Sun 31 May 2026
Where
Oasis, Covent Garden
With
Hard and Smart
See our next event
12
Swimmers
2
Coaches
5/5
Rated by everyone
100%
Would come back
How it went

Our first ever Tumbl event.

For our launch we teamed up with Hard and Smart Coaching for a coached freestyle session at Oasis pool in Covent Garden. It was a brilliant morning. Good swimming, a fair bit of laughing, and enough coffee afterwards that nobody really wanted to leave.

We spent the whole morning on the two things that make the biggest difference to most freestyle swimmers, then filmed everyone in the water so they could see it for themselves.

Every swimmer rated it five out of five and every one of them said they would come back.

Swimmers lined up on poolside at the Tumbl launch event, Oasis Sports Centre
The two coaches at the Tumbl launch event, poolside at Oasis
Coaches demonstrating a stroke to swimmers in the water
A coach talking through technique with swimmers poolside
Swimmers in the pool during the coached session

Oasis Sports Centre · 31 May 2026

What the morning was

Coaching, video, and coffee.

90 minutes of coaching

Freestyle technique with Charlotte and Greg. Small groups by pace, focused drills, eyes on every stroke.

Video of every stroke

We filmed everyone in the water, so each swimmer left with footage on their phone to upload to Tumbl.

Coffees after

We headed to a nearby cafe with the group to chat swimming. The bit everyone said they loved most.

Run in collaboration with Hard and Smart Coaching. Charlotte coaches with Tumbl. Greg Divall is a triathlon coach and two-time GB Age Group world silver medallist.

What swimmers said

Straight from the morning.

“It was amazing to come away from a session with clear things to work on. The coaching was brilliant: very clear instructions, and I loved that they targeted different parts of the catch and pull. I really, really loved speaking to people who also love swimming. It feels like a really nice community could be built through sessions like today.”
Swimmer · Tumbl launch event, May 2026

“Fantastic coaching. Love the expertise and the good mood Charlotte brings.”

Swimmer · May 2026

“Meeting new people and learning useful hints about my technique.”

Swimmer · May 2026

“As a coach it was great to see other coaches doing something they're clearly passionate about. Well planned, well delivered, with just enough to take home without feeling overloaded.”

Visiting coach · May 2026

“Really good vibes from everyone.”

Swimmer · May 2026