DH is a teacher but never taught the girls even when away. We were on holiday and it was amazing what they learnt just by traveling.
The main thing is you all enjoy the holiday. Life is a great learning tool so everyday they will learn.
Speaking about your day is good as it helps with the language, geography, maths, art and other aspects of learning.
Playing in the park or swimming is PE.
Helping with the shopping, reading the speed & road signs, helping get meals ready........you get my drift.......everyday is a learning day for us all.
Even helping plan your holiday is learning.
Good luck with your planning and have a great holiday whenever it happens