Grassholme Reservoir
Grassholme Reservoir is a garden, park & outdoor in County Durham, England. Entry is free. See prices, opening times, the best days to avoid the crowds, parking and food, with every detail dated so you know how fresh it is.
| Price | Free entry Free walks; parking is booked online (charge). Observatory events Wed-Sun. Near Middleton-in-Teesdale. |
|---|---|
| Best time to go | Dry days; observatory evenings Wed-Sun. |
| School holiday tip | Early July is the sweet spot for Scottish families: English/Welsh schools stay in until about 20-23 July. Late August is the English/Welsh peak, so choose Tue-Thu and arrive at opening. |
| Best ages | All ages |
| If it rains | Outdoor: pick dry days |
| Money saver | Free or low-cost; parking is the main cost; take a picnic. |
| Top tips | Teesdale reservoir with a circular walk, fishing, picnic spots and an observatory. |
| What to pack | Wellies, waterproofs, picnic, bug spray, sun cream |
Partly checked on 23 Oct 2026. Confirm prices and times on the venue's website. Venue website or source
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