Paddling abroad should be easy!

Finding all the data needed to organize a paddling trip abroad can be daunting - there are so many questions to answer and the data isn't conveniently available!

How do we take all this information with me on the trip? On paper or on my phone? Without data roaming costs? And what about older phones?

Do we need a permit to paddle the river?

How do we find campsites and boat rentals?

Are there shops along the river within walking distance? Or should we bring all the food for the trip with us?