Hot tubs, rock band Texas and a disco reworking of The Wicker Man have been announced as the latest additions to this year's Latitude festival.
The arts and musical festival at Henham Park near Southwold, Suffolk, is in its eighth year and has grown from a few thousand guests to a capacity of 35,000.
As he announced the latest acts at this year's event - which already included headline bands Bloc Party, Kraftwerk and Foals - creator Melvin Benn said that while there was potential for further growth, he had no desire to see Latitude grow to the size of larger events like Glastonbury.
He said: "We are constantly looking to do new things, not particularly as a business decision but because it's fun and it makes doing this interesting.
"We were the first festival to offer a proper restaurant and now others have followed. Now we're going to be offering hot tubs and saunas as just one way of keeping the festival diverse.
"We have kept the numbers the same for the last few years and it feels about right. It would be possible to increase numbers to 40,000 or 50,000 and we might look at doing that. But that could change the nature of Latitude and we would only do that if it suited the festival. We have no desire to be like any other festival."
Scottish band Texas, fronted by Sharleen Spiteri, are the latest group to be added to the line-up along with trumpet soloist Alison Balsom as the classical act on the Waterfront stage. Mike Skinner, the British rapper best known for The Streets rap project, will make a rare appearance in the Film and Music Arena.
The festival will also feature Wicker Man: A Disco Inferno, performed by Noise of Art, to celebrate the 40th anniversary of the British cinema classic.
Latitude has won awards for its family friendly nature but its diverse nature will also see it host comedy acts including Eddie Izzard, Sean Lock and Russell Kane alongside a series of debates centred around sexuality, including one entitled Born Gay? Neuroscience and Sexuality.
The festival begins on July 18 and runs until July 21.