Wendy...while it was 3 years ago, our tour in Guatemala resulted in gastro distress for the entire group. None of us knew the others were ill until we were disembarking (we'd all be in our cabins for 2 days1) :(
It was a full day tour and they provided us with a box lunch - we decided it might have been the apple although most of us washed it with our bottle water. Who knows?????
