The couple bought their home - a four-bedroom Mediterranean-style villa with panoramic ocean views - for $1.1 million four years ago.
Three- and four-bedroom villas are between $4,850 and $10,300 a night.
Expect to pay around £1,800 for a four-bedroom villa in Istria in peak season.
Rates per night: from $220 for a one-bedroom cottage to $500 for a four-bedroom villa with pool, including maid service and cook.
Off the water there is a four-bedroom "villa" with a stairway in the style of an Aztec temple, for $3,100,000.
The 55-acre resort also has four-bedroom villas.
According to its Web site, an ocean-front four-bedroom villa goes for $3,960 a night from now to Halloween.
Ash was extended in 2007 to include new four-bedroom two-storey villas.
There are also modern, self-catering three- and four-bedroom villas and town houses set apart from the manor in their own little village.
Flats start at £195,000 and four-bedroom villas at £452,000.