Hotel prices are on the way up, according to the latest price index from Hotels.com.
It says prices in Ireland increased by 10% to an average of €101 per night.
The most expensive hotels are in Killarney, according to the index, where an average room rate comes in at €111 per night, up 4% in the year.
Dublin's room rates are up by 15% to €107 per night on average.
"The year so far has been exceptionally strong with tourism numbers rising rapidly," said Lizann Peppard of Hotels.com.
"We expect this upward trend to continue into the latter half of the year especially with increased tourism from the US and China thanks to new air routes," she added.
However, the Irish Hotel's Federation rejected the Hotels.com findings.
It says price hikes are running at just under 3.5% nationally, with figures in Dublin running slightly ahead of this.
It believes the Hotels.com figures are not a true reflection of the national picture.
"Less than one out of every ten room nights booked in Ireland is sold through this booking site. The vast majority are sold through other sources including directly with the hotel, over the phone or through the hotel’s own website," Stephen McNally, IHF President said.
"Hotels.com does not typically capture other categories of booking such as the key tour, conference and event market segments," he added.