| Facilities: Subway Cave Picnic Area has vault toilets. Best Time To Visit: Subway Cave Picnic Area is open from late May to October if weather permits. Fees: This picnic area does not charge a fee. Accessibility: Unknown Rules: Unknown Directions: To get to Subway Cave Picnic Area from Susanville, take Hwy 36 southwest. From there continue on the Hwy 89 and Hwy 44 intersection for 3 miles which leads to the picnic area. Map: Click here for a map to Subway Cave Picnic Area Reservations: Subway Cave Picnic Area does not require reservations. | 
