Puerto Rico is introducing water rationing in San Juan as an intense drought affects the Caribbean island, creating potential disruption for visitors, including American tourists. The measures underline how the drought is placing pressure on essential services in one of the region’s major travel destinations.

More than 180,000 water customers are due to face 48-hour supply interruptions on an alternating schedule beginning on Friday, according to the Associated Press. Tourists may need to adjust accommodation or travel plans if their hotels or rental properties are affected by the outages.