The main beach at Prince Albert National Park has reopened for swimming. ((CBC))

A beach at Prince Albert National Park has reopened, but crews are still cleaning up damage from an intense storm earlier this week.  

Crews were still removing felled trees and other debris, officials said Thursday. Several roads were also damaged in the storm, although they were expected to be back in operation by Thursday evening.  

A beach area, which had been closed over concerns about water quality when the sewage treatment system lost power, has reopened, officials said.

"Approximately 100 millimetres of rain fell between 8 p.m. July 18 and 10 a.m. July 21," officials said in a news release Thursday, adding it might be a record for the park.  

The heavy rain led to some flooding in the park and the cancellation of the Narrows Canoe Challenge and Music Festival.  

Visitors to the park are advised to check all notices, as several trails were affected by downed trees.