1 are having their boat repaired at the moment.
2 have had a special wetsuit designed.
3 will have their diving trip arranged by a tour guide.
4 had her new equipment ordered yesterday.
5 will have her underwater camera repaired tomorrow.
6 was having her injured knee examined by the doctor.
7 had had their equipment checked by the instructor.
8 has her boat cleaned (by a cleaner) after each dive.