The outdoor world makes something of the tripartite typology of fun (see here). These are highly subjective, so I'll give it to you as we use it.
Type I fun is always fun. It is fun while you do it and it is fun when you remember it. This might be an easy hike, a leisurely bike ride, or eating ice cream. But it could also be something more strenuous, but where everything goes according to plan.
Type II fun is not fun while you do it, but upon reflection, you think: "Nah, that wasn't so bad." Maybe it was a little bit adventurous. Perhaps a little risky. Something, perhaps, went wrong. But it wasn't catastrophic; no one was hospitalized and SAR wasn't deployed.
Type III fun... I can't comment on because we've yet to experience it. Aside from raising children.
This was a Type II fun trip.