If you stop at hotel..bring bikes inside. Make sure you've record of serial #'s..with you. If these 'trails' go on road be sure to have 'blinky' lites tacked on, cheap insurance. There will be pedestrians, having even a cheap bell(ding,ding) will alert them to your presence. Even daftest pedestrian seems to instinctively know 'ding, ding' means bike behind. Most 'knowledgeable' (read 'think they know it all) bikers figure just hollering 'On your left(right)' covers all, it doesn't. You can holler same in addition to 'ding, ding'..bells run as cheap as $5.95. If you see a dog, and he approaches, get off bike, put bike between you and it, don't be afraid to pick bike up, dogs recognize humans w/anything in their hands are dangerous. There is great air horn on market you can pump up w/bike pump and holds lotsa honks, under $25, and it's LOUD, up side, scares dogs and people in cars WILL hear you, downside, some people in cars may try woopin yer behind for loud honking. Bring tire/floor pump, patch kit, tire levers AND tubes. If tire gets cut bad you can 'boot' it w/bar wrapper, or $ bill(that means putting something substantial between tube and cut in tire).If there's local 'Rangers' put their phone # on speed dial.
Above all, you kids have fun.
JGroth