You need to get temp's up to 85F and humidity around 50-60%. Also, heat mats in frogs enclosure need to be affixed to side. Reason is frogs bury to cool down. Myself do not trust bottled water. It is more safer to use treated tap (Seachem Prime or ExoTerra Aquatize) since they treat those bottled waters to human drinking city standards, not frog standards. The water dish should be cleaned and refilled daily even if it looks clear. The coco substrate should be mixed with treated tap until slightly damp and clumps in fist without dripping water out.

Are you driving to vacation site? How far? Maybe it's possible to take them with you .