The snippets describe Mill Park as being on/near Berrynarbor and the North Devon Coast, with no mention of the River Umber.

However, Berrynarbor and the Mill Lane location are consistent with the River Umber valley area, and the site's wooded valley setting aligns geographically. I'll write the description based on what the snippets actually state.

Mill Park Campsite is a sheltered touring and camping site set in an attractive wooded valley in the village of Berrynarbor, near Ilfracombe on the North Devon Coast.

The site accommodates tents, touring caravans, motorhomes, and glamping options including bell tents and camping pods, with electric grass pitches and fully serviced touring pitches available.

On-site facilities include a bar, fishing lake, shop, games room, family room, and laundry. The site holds a 5 Gold Pennant AA rating and features in the Premier Parks Top 100.

Broadsands Beach is within walking distance, and the beaches at Woolacombe and the harbour at Ilfracombe are a short drive away.