There are grassy areas and a covered picnic shelter for picnicking. The beach is sandy and rocky. Fire rings are available, however visitors must supply their own firewood.
Please note that pets are not permitted in the day use and beach area however they are allowed at the creek side picnic sites. The gate is locked daily from 11pm to 7am. The day-use area is open from May 15 to September 7 and the gate is closed during the off-season, however walking in is permitted.
All five species of Pacific salmon, as well as steelhead, rainbow trout and dolly varden, can be found in the lakes and creeks around this park. Observe spawning salmon in Diana Creek in August and September. Anyone fishing or angling in British Columbia must have an appropriate licence.
Pets and domestic animals are not permitted in the day-use area adjacent to Diana Lake and must be kept on a leash at all times in all other areas of the park. Please obey all posted signs. You are responsible for their behaviour and must dispose of their excrement. Backcountry areas are not suitable for dogs or other pets due to wildlife issues and the potential for problems with bears.
Bicycles must keep to roadways. Bicycle helmets are mandatory in British Columbia. Bikes are not permitted on the Diana Creek hiking trail.
Please note that bicycles with electric assist motors (e-bikes) are not allowed on the trails within Diana Lake Park. E-bikes are restricted to park roads and areas where motorized use is permitted. The only exception to this policy will be for authorized and identified trail maintenance bikes conducting work on behalf of BC Parks.