Chiang Rai, Luang Prabang, Thailand, Laos

Chiang Rai - Luang Prabang by river. Suitability for young child?

Just wondering if anyone has any comments on whether the 2 day river cruise from Chiang Rai to Luan Prabang would be suitable for two parents to take a 5 year old.

It may well be too much but looks like two slow/relaxing 6 hour boat trips with a stopover in Pakbeng.

Maybe with the right boat/tour company it might be worthwhile?

Interested to know if anyone has any comments?