Interim Conservative leader Rona Ambrose had already spent several days on a billionaire鈥檚 yacht when she wrote to the federal ethics commissioner to make sure her holiday wasn鈥檛 breaking any rules.

Ambrose was on a yacht owned by oilsands financier and Calgary Flames co-owner Murray Edwards from Jan. 3-14 as it sailed in the Caribbean.

Back in Ottawa, her Conservative colleagues blasted Prime Minister Justin Trudeau for vacationing on the Aga Khan鈥檚 private island.

Ambrose wrote to the ethics commissioner on Jan. 12, the day Trudeau admitted to using the Aga Khan鈥檚 private helicopter to reach the island.

The ethics commissioner said Ambrose didn鈥檛 break any rules and didn鈥檛 need to disclose any details of her holiday.

While still on the yacht, Ambrose tweeted that Trudeau couldn鈥檛 resist 鈥渢he billionaire lifestyle,鈥 and linked to a story about the prime minister鈥檚 vacation.

Ambrose tweet

The Prime Minister's Office confirmed last month that Trudeau, his family and a few friends vacationed on the Aga Khan's private island at the end of December. They also flew in his .

Under the Conflict of Interest Act, ministers of the Crown are not allowed to 鈥渁ccept travel on non-commercial chartered or private aircraft for any purpose unless required in his or her capacity as a public office holder or in exceptional circumstances or with the prior approval of the (Conflict of Interest and Ethics) Commissioner.鈥