It is my understanding that "legitimate reason to travel" refers to the fact your travel is not an attempt to defeat creditors.
In the Bankruptcy Act the only reference I have found to travel
so far is in Section 272 which states:
Leaving Australia with intent to defeat creditors etc.
(1) A person who:
(a) within 6 months before the presentation of the
petition on or by virtue of which he or she became a
bankrupt, left Australia, or did an act preparatory to leaving Australia, with intent to defeat or delay his or her
creditors; or
(b) after the presentation of the
petition on or by virtue of which he or she became a
bankrupt and before he or she became
bankrupt, left Australia, or did an act preparatory to leaving Australia, with intent to defeat or delay his or her
creditors; or
(c) after he or she has become a
bankrupt and before he or she is discharged from the
bankruptcy, without the consent in writing of
the trustee of his or her estate, leaves Australia, or does an act preparatory to leaving Australia;
is guilty of an offence and is punishable, on conviction, if the offence relates to the doing of a thing specified in paragraph (a) or (b), by imprisonment for a period not exceeding 5 years or, in any other case, by imprisonment for a period not exceeding 3 years.
(2)
The trustee may impose written conditions on a consent given for the purposes of paragraph (1)(c). If the
bankrupt is liable to make a
contribution to
the trustee under
section 139P or
139Q, the conditions may include conditions regarding the payment of that
contribution.
(3) If the
bankrupt contravenes any condition imposed by
the trustee, the
bankrupt is guilty of an offence and is punishable, on conviction, by imprisonment for a period not exceeding 1 year.
Link included below:
http://www.austlii.edu.au/au/legis/cth/consol_act/ba1966142/s272.html