Large groups of people can be a challenge.
Except when they all know how to co-ordinate, not match. (Who would have guessed plaid)
And when I happen to have spent summers floating the river with them growing up.
And when you know the kids well enough to tell them to knock it off.
So I guess, they can be. But this group wasn't. We were chased by the setting sun and had a two hour window where we wouldn't have to photo-shop anyone in the picture and came out two thumbs up.
Ok, maybe just one thumb up...