When we were away and we could not fit in our sterilisers, we used to wash and rinse our bottles really well and sterilise with just boiling water and leaving it in the bottles, dishes and soaking the teats upside down in the lid to the bottle. You could also use a few of the disposable bottles to tide you over.
Perhaps see if your Health Visitor has any other ideas, as you may be able to go without the worry of buying something you may not use when you get back.
The Avent Microwave Sterilisers are £ 19.99 in boots.
Hope this may help. Have a great holiday.
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