Although we haven't gone camping, we got 30 ft leads fir the girls for when we took them to my friends pond, as they do not have a fenced in yard. Worked out well...gave the girls enough room to raom so they didn't feel trapped, yet we could easily keep track of them. I have also seen 50 ft leads for not too much more ( I think we payed ~$15 or $20 for each lead)