More if a damage limitation question until I can get home.
I’ve got longish hair, which I’ve had highlights in for a years. About a year ago I decided to ditch the bleach and go au natural as I’m quite grey. All going well as I’ve been using a silver shampoo which has been toning down the brassyness etc. But it does mean my highlights are quite old (about 2/3 of my hair still has bleach in it)
Now onto my question, I’m on holiday with the dc for two weeks in Greece, lovely pool which is salt water, we’ve been here a week, with a week to go. My bleached hair has turned a rather attractive shade of lime green 
(kids think it’s great), is there anything I can do to stop it getting worse. I can’t stay out of the pool as the dc want to play in it. Keeping my hair dry is near on impossible too. Plus I didn’t bring my silver shampoo with me either
The chemicals must be quite harsh as everyone’s swimming costumes have turned yellowy green 