Ready for Tagaytay

The pre-school that my in-laws own are having their annual educational trip on Thursday. The husband as well as my SIL's husband have filed their leaves off from work so the whole family can join the school kids. We've already planned out the picnic foods we'll be bringing and we're all set for our Tagaytay getaway. Unfortunately, MIL, at the last minute backed out due to health concerns. She had gone retinal detachment a few months ago and she's refrained from engaging with tiring activities and too much sunlight. We thought of borrowing/renting an aunt's RV so that MIL can still go with us and the trip will be relaxing for her but the rv financing processing talks is still ongoing so they can't lend it to us. Anyway, I guess, it's much better if she'll just rest here at home.