GRINDAVIK, Iceland (AP) — The popular Blue Lagoon geothermal spa, one of Iceland’s biggest tourist attractions in the country’s southwest, was reopened Sunday after authorities said a nearby volcano had stabilized after erupting four days earlier.

Oddný Arnarsdóttir, the head of Visit Iceland, said authorities had redone the security zones in the area and based on that the lagoon was safe to reopen for tourists. “Blue Lagoon opened again today,” she said.

Hundreds of tourists bathed in the lagoon, with the view of the erupting crater in the background. Cameron and Natalie Pacileo, tourists from North Carolina, said they were delighted to see the volcano from the lagoon.

“It’s pretty wild. It’s a beautiful view, and nice that they reopened so we can experience it,” said Natalie Pacileo.

The eruption Wednesday was the fifth and most powerful since the volcanic system reawakened in December after 800 years, gushing record levels of lava as its fissure grew to 3.5 kilometers (2.1 miles) in length.