I do a couple 2 day rides with my kids each year. They are currently 10 and 6. The 6yo comes when my wife also goes since we become a rolling caravan with one adult pulling our youngest in a Weehoo and the other adult pulling a converted trailer with gear.

Havent done longer because of my and the family schedule. I mention this because it isnt due to inability, but rather due to not being a priority.

My oldest and I just did a 75mi ride last month and she carried some of the gear. I slapped a rack on her bike and filled up some extra panniers with light bulky gear. If you have kids that can knock out 40mi per day without a second thought, then have em carry a bit of gear. No reason to suffer with everyone’s stuff on your bike.
Ours was a mix of roads and trail, probably 30/70% mix, respectively.

As already mentioned- keep it fun. In the past we have- brought collapsible fishing poles for ponds, gone swimming at the overnight town’s community pool, stopped for ice cream, stopped at multiple parks/playgrounds, etc to keep the trip fun. Mine are motivated by what is coming up so if there is nothing coming up…they drag.
Something Ive learned too- music and speed help the miles roll by. I got a small($15) Bluetooth speaker for her handlebars and put my gps computer on her bike so she can see our current pace. The combo of music and speed has really helped us go further and/or faster which means more fun off the bike activities. The only downside is listening to “Handclap” on repeat…for 50 times.


Check out these websites for some inspiration.
Family on Bikes
New adventures await for the Pedouins!