People setting out to get fit may also be unwittingly setting out to get fleeced.
Fitness gym carparks in Napier and Hastings have become the latest popular spot for thieves.
"On Wednesday we had six reports of cars parked at gyms in Napier and Hastings being broken into," Hawke's Bay Police crime prevention advisor Paul Miller said.
"We have noticed an increase in these just recently. It's as if thieves have worked out its a good place where cars will be left unattended for a time."
The break-ins had happened during the day and in the evenings, with the thieves going after bags and wallets which gym-goers had left in their vehicles.
"Take your property in with you," was Mr Miller's simple advice, adding that hiding the items out of sight in gloveboxes and under seats was no longer a guarantee the car would not be targeted.
"Thieves know by now that people will hide them away. In some cases they will break in to look anyway."
Some of the property reported stolen in the past week had been in clear sight.
Checks on two gyms showed they had lockers available for people to store bags while they exercised.