In the mid-Pacific, if the solar-powered water filter gives out, the ladies of Team Boatylicious may be forced to switch off their iPod.
But when Dubliner Aoife Ní Mhaoileoin and her fellow rowers have to worry about swimming with sharks or being run over by a super-tanker, losing the sound-system will rate as a minor inconvenience.
On June 7, Aoife, a doctor from Castleknock, now working in London, and her three teammates will be the only all-female rowing team setting out on the first Great Pacific Race.
It will be an epic row across 2,400 miles of empty ocean, from Monterey in California to Honolulu, Hawaii, billed as the "biggest, baddest human endurance challenge on the planet".
In a relatively tiny 24ft boat, they will spend at least 40 days rowing non-stop – two-on, two-off – racing 15 other teams. And they are doing it at the start of the Hurricane Season.
For Aoife (26), it will certainly be a step into the unknown in a number of ways. Before signing up to join the team, the Dubliner's previous boating experience extended to "piloting pedalos".
"I saw an ad on the internet asking if anybody would be interested in joining a team that was going to row across the Pacific. I answered it, but to be honest, I never really expected to even get a response," says Aoife.
"I was a bit shocked when they signed me up. I think my parents back in Dublin thought I would never do it. They are a bit worried now."
Sitting in a café in the shadow of the famous sailing ship, the Cutty Sark, in Greenwich, London, Aoife appears to be remarkably relaxed about the epic challenge she has signed up for.
"Everybody asks about the sharks," says Aoife. "And we will have to get into the water around once a week to scrape the bottom of the boat. We'll probably have to take turns, but, when one of us is in the water, the others will have to keep a watch out for sharks.
"Mind you, the real danger is getting run over by a big ship. We will be low down in the water, there will also be a chance they won't even see us. There's also storms, it will be the start of the Hurricane season to take advantage of wind conditions."
Aoife, who went to work on a Fijian island after finishing her initial medical studies at Trinity College, is the "adventurous type" who loves rock climbing and "being in the middle of nowhere".
The big concern on their tiny craft will be (apart from the sharks and the super-tankers) food and water. Their dehydrated food packs will need litres of water every day and they will depend on two sources, a primary, solar-powered still that converts sea water into drinkable liquid and an emergency hand-operated filter.
"The solar-powered one can make litres of water every day. If that breaks down, it's 10 minutes of very hard pumping to make yourself a glass of water. We will have GPS systems and also the radio, but the solar still is definitely our most important piece of kit," she says.
"We get along really well, but we don't really know each other yet. Which is actually going to be a plus because we will have a lot to talk about out on the ocean, we'll probably be sharing our life stories!"
The ladies (collectively known as Team Boatylicious) began their first open sea rowing training last weekend.
Another big concern for the one Irish girl in the race will be sun-block. They have been given a supply of the latest, ultra-protective, water-resistant formula from a sponsor and Aoife expects to use a lot.