We took a tour bus to Mt. Irazu in Costa Rica. I was 10. The road up was so narrow, it barely accommodated our vehicle. It was like being on the moon. When it was time to bring us all back, it got stuck in the volcanic ash and the wheels sank deeper and deeper... hours later, amidst the dipping temperatures and the setting sun, our bus was freed just after an alternate bus arrived... so elated to descend in darkness.