Police are appealing for information after eight tents were broken into at a motorcycle rally held near Squires Café in Sherburn-in-Elmet.
The tents were entered in the early hours of the morning on Saturday April 19 while the occupants slept.
The thieves stole mobile phones, cash, wallets and a watch.
Police are appealing to anyone who was at the rally and to anyone who has any information about the thefts to contact them.
Anyone with any information is asked to contact North Yorkshire Police on 101, select option 2 and ask for PC Ian Thompson, or email firstname.lastname@example.org
For those who prefer to remain anonymous, they can pass information to Crimestoppers on 0800 555 111.
Please quote reference 12140061880 when passing on information about this crime.