From the bus stop in Constantine Bay, follow the road northwards for about 100yds. At the road junction, opposite the golf club entrance, take the footpath on your left, which runs along the edge of the golf course to Constantine Bay, where you join the Coast Path.

Constantine Bay and Treyarnon Bay are popular with surfers but the rip currents can make swimming hazardous. After crossing the beach at Treyarnon Bay, the Coast Path climbs onto the cliff tops.

Separated from the shore by a narrow channel is Trethias Island, and here or further along this section of the coast you may see seals hunting for fish. This section of coast is unusually indented with narrow coves formed as the sea has eroded the weaker bands of rock, leaving the harder rocks as headlands.

Cutting across the neck of the headlands south of Trethias Island are low banks which formed the defensive ramparts of what was a single Iron Age cliff castle. Due to the active erosion of the cliffs on this walk, it is advisable to stay away from their edges, as they may be undercut. At Fox Cove, the remains of a tanker, ‘Helmsley I’ wrecked in 1969, on its way to a breakers yard, are visible.

Passing more small islands and coves, the Coast Path descends into Porthcothan, goes along the road for a short distance to cross the stream, and then returns back onto the cliff tops. After about a mile you reach Porth Mear, owned by the National Trust. Close to the path between here and Park Head are six Bronze Age burial mounds that probably date from 1200BC and 2500BC. Across the neck of Park Head is another cliff castle, with its two defensive banks separated by a ditch.

As you head south from Park Head you get your first view of the rock stacks known as Bedruthan Steps. These take their name from a giant called Bedruthan who used the stacks as stepping stones forming a short-cut across the bay. However it is claimed by some, that this is just a story made up in the late 19th century when it first became a tourist attraction, and ‘the steps’ actually take their name from the cliff staircase used to access the beach (swimming here is also hazardous).

From Bedruthan Steps the Coast Path steadily descends down to Mawgan Porth.