Valkmusa National Park is located on the northside of the main road E18. The National Park is situated on road 3562, which leads north from the Village of Siltakylä in Pyhtää.
From the road 170 there are signs to Valkmusa National Park. At Siltakylä the signs lead to the circular trail and the nature observation tower. At Heinlahti the signs lead to the Moronvuori Day Trip Hut.
By Public Transportation
On weekdays buses from Kotka to Vastila and Hirvikoski travel along road 3562, which is a boundary of the park. There is a bus stop about 200 metres from the National Park.
There are two parking areas in Valkmusa National Park. One is located by Road 3562 (Pyhtää) on the edge of Valkmusa mire. The other is located at the end of the Suolinnantie Road (Pyhtää), on the eastern edge of the park.