Prince Harry will see St Lucia's world-famous twin Pitons during a visit to the Caribbean island which begins later today.
Harry is on a 15-day tour of the Caribbean and will arrive later in St Lucia - where the Queen is head of state - the third stop on a seven-country trip.
On Friday he will take a trip by boat to the southern end of the island and will get an unrivalled view of the natural wonders.
Approaching the twin Pitons - two volcanic peaks - by boat is an unforgettable sight as they rise 740 metres above sea level, dominating the horizon for miles around and are clad in dense vegetation.
He will receive an official welcome to the country when he steps onto St Lucian soil at Pointe Seraphine later today.
In the evening Harry will attend a reception hosted by the Governor General Dame Pearlette Louisy, in the gardens of Government House, overlooking the historic harbour of the capital, Castries.
His travels have already taken him to Antigua and Barbuda, and St Kitts and Nevis, two countries where the Queen is head of state, and he will visit three more of her realms Barbados, Grenada, and St Vincent and the Grenadines, with the Commonwealth nation of Guyana the final stop.
The Prince is travelling on the Royal Fleet Auxiliary Wave Knight, a tanker already in the region on counter-narcotics and disaster relief duties.
The trip has been overshadowed in recent weeks by the news Harry is dating American actress Meghan Markle who is believed to have stayed with the Prince at his Kensington Palace home earlier this month.
During his tour Harry will mark the 50th anniversary of independence for Barbados and celebrate the same historic milestone in Guyana.