A UK luxury hotel has launched a new fitness retreat, promising to "push boundaries" and drive guests to "achieve results they never thought possible".

Called The Escape, the three-day retreats at the Four Seasons Hotel Hampshire have been designed to establish the property as a wellness destination – and attract those looking for a holistic but hardcore fitness experience.

The programmes will feature up to 12 hours of fitness training, three hours of spa treatments, breakfasts, healthy lunches and dinners, use of the spa facilities and two nights’ accommodation.

The activities at the retreats range from outdoor meditation sessions, "extreme" exercise classes and nutrition masterclasses to yoga and boot camp-style sessions involving ice baths.

Priced at £1,650 per person, the first "Escape" was scheduled to launch this April with another taking place in June.

However, the hotel confirmed on 21 March that although the uptake has been good, the April Escape has been cancelled to allow more marketing time. The second event will still take place and others may follow, depending on demand.

The retreats have been designed by a team of fitness professionals led by former US soldier Joshua Blackmer.

“The purpose of our boot camp is to push individuals outside of their comfort zones, both mentally and physically," Blackmer said.

"When training in the army, I learnt that when put in the right environment there are no limits on what you can achieve.

"With The Escape we will give you a foundation of knowledge concerning health, training and nutrition and something completely outside the normal routine of the gym or studio.”

Set within 500 acres, Four Seasons Hotel Hampshire is housed at a Grade I-listed mansion at Dogmersfield Park. The building was previously the headquarters of international computer company Systems Union Holdings, which sold it to property developer Rochamel in 2001 for £7.75m. Rochamel then converted it into a hotel on behalf of Four Seasons.