Christine Monaghan (left) and Katie Wolfinbarger went scuba diving in Ixtapa, Mexico in August.

Their dive master took this photo with Wolfinbarger's underwater camera.

"We went to Mexico twice in August. Once to Mexico City and once to Zihuatanejo/Ixtapa," Monaghan said. "We had a fabulous time."

The second trip was planned for Puerto Vallarta, but flights were oversold, so the pair went to Zihuatanejo instead.