Tying the knot on planes or while parachuting off them, on cruise ships or underwater, at theme parks, beaches and parks may be permitted by the end of this year. Couples vying to hold their ceremonies on auspicious days may also no longer be hampered by the limited slots at marriage registries as they will be able to hold their weddings where and when they wish. The Security Bureau is seeking an amendment of the Marriage Ordinance to allow experienced solicitors and notaries to act as 'civil celebrants' of marriages, lifting restrictions on times and places weddings are allowed. Immigration officials said a side effect of the easing of rules could see a marriage tourism boom.