I suppose there is more than one right answer. I have been trained as a Webelos leader, and now formal Scoutmaster training. I have BALOO training as well.
I can't seem to recall any FORMAL rule on one or two nights of camping, but suggestions for one night as it sometimes is more difficult for the younger Webelos and their parents. However, that being said, our Troop encourages Webelos to come on outings, and at our Camporees, the Webelos can stay all nights, but they need to have a troop 'sponsor.' Even at our Scout-o-rama we encourage the Webelos to come! Our Scout-o-rama is outdoors at a park in the city limits and lasts 3 days (two nights). This has helped our Pack grow to close to 80 boys, and our Troop to grow to 60-70 boys!
Bret F. Craytor, First Assistant Scoutmaster
Troop 16, Texarkana, Tx
Assistant Webelos Den Leader
Pack 16, Texarkana, Tx