Plumb Hill, Pentle Bay, Gun Hill and King Charles's Castle Loop

Starting near New Grimsby, England, this 11 km (approximately 6.8 miles) loop trail offers a moderate challenge with an elevation gain of around 100 meters (328 feet). The trailhead is easily accessible by public transport or car. If you're coming by public transport, you can take a ferry to Tresco Island and then walk a short distance to New Grimsby. For those driving, parking is available near the trailhead.

Plumb Hill and Pentle Bay

The trail begins with a gentle ascent up Plumb Hill, offering panoramic views of the surrounding landscape. As you make your way up, you'll notice the lush greenery and diverse plant life that characterize this part of the trail. After reaching the summit of Plumb Hill, the trail descends towards Pentle Bay. This section is relatively flat and provides a serene coastal experience. Pentle Bay is known for its pristine white sand beaches and crystal-clear waters, making it a perfect spot for a short break or a picnic.

Gun Hill

Continuing along the trail, you'll head towards Gun Hill. This part of the hike involves a moderate climb, but the effort is well worth it. Gun Hill is historically significant, as it was once a defensive position during the English Civil War. The remnants of old fortifications can still be seen, offering a glimpse into the past. The views from Gun Hill are spectacular, with sweeping vistas of the surrounding islands and the Atlantic Ocean.

King Charles's Castle

The final major landmark on this loop is King Charles's Castle. This 16th-century fortification was built during the reign of King Charles I and played a crucial role in the defense of the Isles of Scilly. The castle ruins are well-preserved, and information boards provide historical context, making it a fascinating stop for history enthusiasts. The trail around the castle is relatively flat, allowing you to explore the area at your leisure.

Wildlife and Nature

Throughout the hike, keep an eye out for the diverse wildlife that inhabits the area. The Isles of Scilly are home to a variety of bird species, including puffins, oystercatchers, and various seabirds. The coastal sections of the trail offer opportunities to spot seals basking on the rocks or swimming in the waters.

Navigation and Safety

For navigation, it's highly recommended to use the HiiKER app, which provides detailed maps and real-time updates. The trail is well-marked, but having a reliable navigation tool will ensure you stay on track. The terrain is varied, with some rocky sections and uneven ground, so sturdy hiking boots are advisable. Carry sufficient water and snacks, as there are limited facilities along the trail.

This loop trail offers a perfect blend of natural beauty, historical significance, and moderate physical challenge, making it an excellent choice for hikers looking to explore the unique landscape of the Isles of Scilly.