Mountain Climbers 30 / 30
Ten rounds of thirty seconds of mountain climbers with thirty seconds of rest. Even work-to-rest ratio — sustainable but not easy.
The Workout Briefing
Movements
- 01
Mountain Climber
10 rounds: 30s work / 30s rest; alternate fast knees with controlled core engagement
Scaling
Easier
slow tempo with longer foot contact, or elevate hands on a bench
Harder
cross-body mountain climbers (knee to opposite elbow).
What Today's Timer Looks Like
10 × 30s mountain climbers / 30s rest.
Seconds Interval Timer
The full Seconds experience — on iPhone, Apple Watch, and Android.
Build Your Own Timer
- Intensity
HIIT
Fixed work/rest intervals, repeated for a set number of rounds.
- Stations
Circuit
Rotate through named exercises with optional breaks. Stations of any duration.
- Blocks
Tabata
Back-to-back HIIT blocks — every round of one exercise, then on to the next.
- Combat
Round
Simple timed rounds with breaks. Boxing, MMA, sparring.
- Control
Custom
Build any interval sequence from scratch, one by one.
- Stacks
Compound
Stack other timers into a multi-block session, cycled as a whole.