In October 1966, scenes were later shot in Marigot Bay, Saint Lucia; this location was equally problematic, and problems with insects and frequent tropical storms delayed filming and left eight crew members bedridden due to vomiting, diarrhea, and high fever. The final scene with a giant snail was complicated not only by the poor design of the large prop, but because the island's children had recently been struck by a gastrointestinal epidemic caused by freshwater snails, and mobs of angry locals threw rocks at it. Around this time, Jacobs was hospitalized after having a heart attack. Within a month, filming had fallen 39 days behind schedule in which the production crew had to decamp back to California for reshoots.