Dirt jumps is a park in Upper Hutt, with a Google rating of 5.0. By its name it is a dirt jump area for bikes.
A good dirt jump park has well-shaped, well-maintained jumps in a progression, from small rollers for beginners to bigger lines for experienced riders, and a clear run-in and landing for each. Newcomers do best by walking the line first, rolling over jumps slowly before trying to clear them, and watching how others approach each one. Regulars know that dirt is best after a dry spell and can be slick or sticky after rain, that a helmet, gloves and knee pads are sensible, and that you wait for the landing to be clear and call out before you drop in. Check your brakes and tyres before riding, bring water, and keep spectators and young children well back from the landings. Respect any signs and take your rubbish home.
For riders in Upper Hutt, the dirt jumps are a very well-rated local place to build skills on a bike.