Complex sentence: There, they were given several balls and had to ride a zipline over La Union scenery and had to either drop one ball into any of the inflatable pool targets or two balls into the large swimming pool below.
Split into simpler sentences: There, they were given several balls and had to ride a zipline over La Union scenery. They had to either drop one ball into any of the inflatable pool targets, or two balls into the large swimming pool below.