Period swimwear recommendations

[mistee77]

Hi mum's,
Has anyone tried and can recommend period proof swimwear please?
My daughter turned 13 a few weeks ago and is desperately exited to visit Iceland soon, particularly the Blue Lagoon but we've realised she's due her period while we're away!
A Google search has only helped me find Modibodi Red Swim - but they're sooooo expensive and I'm a bit worried they're only designed for light to moderate flow as her periods tend to get quite heavy.
Are there any other brands out there, available in the UK (the Ruby Love stuff from the US looks amazing but it's £20+ for shipping before you've even decided what to buy!!)
As it's only going to be used for 1 day I really don't want to break the bank!!
There's a pair of Modibodi swim bottoms on sale for £15 but they're really skimpy and as she's quite well developed, kids sizes don't tend to fit her so I have to buy adult sizes.
She's had leaks with regular period pants and I've read they're not suitable for swimming anyway.
Any recommendations would be super appreciated!!
Thanks

Would she consider tampons? You get teen versions

No, she refuses point blank to even consider them

Will the pills for the postponing of period be an option?

I bought the swim bottoms from modibodi for my DD same age and they worked fine - I got her a plain black tankini from somewhere else and she uses the modibodi bottoms instead or she actually puts them on under another pair. It's worked ok so far though she isn't that heavy- but you don't seem to lose as much blood when swimming anyway... good luck!

Could she wear the Modibodi bottoms underneath another sturdier pair?

My dd and niece have both used the modibodi bikini bottoms with mo problems.

I would get her the pill for delaying periods my mum used to get them for me whenever a period and a holiday coincided and it was great as I had very heavy periods and was still very much a child and wanted to do all the fun things with my family.