Ответ:

{
"1": "diving",
"2": "water skiing",
"3": "windsurfing",
"4": "surfing",
"5": "snorkeling",
"6": "buying souvenirs",
"7": "going on a jeep ride",
"8": "trekking in the mountains",
"9": "visiting historic sites",
"10": "taking photos",
"11": "sunbathing",
"12": "trying local food",
"13": "sailing"
}