1999, La Havana (Cuba)
Summer of 2001, France
August 2002, Galicia (Spain)
With Princess Maria de Bourbon & husband Archduke Simeon of Habsburg and Princess Victoria de Bourbon & husband Markos Nomikos.
Summer of 2002, Cabasson (France)
Philippe, Mathilde and baby Elisabeth (9 months) were staying at the holiday home of the Luxembourg royals, in their company.
Spring 2003, Châteauneuf de Grasse (France)
Late summer of 2003, Bormes-les-Mimosas (France)
Spring of 2005, Switzerland
Summer of 2005, Châteauneuf-de-Grasse (France)
Summer of 2005, Portugal
January 2006, Portofino (Italy)
With Archduchess Sophie von Habsburg & her husband, Hugo von Windisch-Graetz.
Early 2006, Verbier (Switzerland)
Easter 2006, Cáceres and Mérida (Spain)
With Prince Konstantin & Princess Maria of Bulgaria, they were guests of María Oriol.
2007
Summer of 2008, Taranto (Italy)
Late October - Early November 2008, El Gouna & Luxor (Egypt)
Philippe, Mathile and their 4 children were accompanied by Mathilde's mother Anne d'Udekem who had recently been widowed. They were guests on the yacht of a wealthy Egyptian family.

The same week a bus with Belgian tourists had an accident in Egypt, causing the death of 6 persons. On 31 October 2008 Philippe & Mathilde visited the hospital where wounded passengers were being treated.
March 2009, Verbier (Switzerland)
August 2010, Ile d'Yeu (France)
April 2011, Extremadura (Spain)
With Prince Guillaume & Princess Sibilla of Luxembourg and their 4 children: Paul, twins Charlotte and Léopold, and Jean.
December 2011, Oman
A Belgian spotted the crown princely family in Oman on 31 December 2011.
February 2012, Verbier (Switzerland)
Summer of 2012, Ile d'Yeu (France)
Early 2013, Verbier (Switzerland)
Summer of 2013, Ile d'Yeu (France)
Summer of 2014, Vézelay, France
Late summer of 2014, India
With Prince Guillaume & Princess Sibilla of Luxembourg and their 4 children: Paul, twins Charlotte and Léopold, and Jean.