Related Rule
Australia
Practice Relating to Rule 121. Location of Internment and Detention Centres
Australia’s Defence Force Manual (1994) states: “PW [prisoner of war] camps must not be located near military objectives with the intention of securing exemption from attack for those objectives.” 
Australia, Manual on Law of Armed Conflict, Australian Defence Force Publication, Operations Series, ADFP 37 – Interim Edition, 1994, § 1014.
The manual further states: “PWs [prisoners of war] may only be interned on land and centres of internment must be established in healthy areas, with prisoners having facilities guaranteeing hygiene and health.” 
Australia, Manual on Law of Armed Conflict, Australian Defence Force Publication, Operations Series, ADFP 37 – Interim Edition, 1994, § 1016.
Australia’s LOAC Manual (2006) states:
10.25 Prisoners must be evacuated to camps away from any danger areas as soon as possible …
10.26 PW [prisoner-of-war] camps must not be located near military objectives with the intention of securing exemption from attack for those objectives … The location of PW camps shall be communicated to the enemy through the protecting power and whenever possible such camps should be clearly marked with the letters ‘PW.’ or ‘PG.’ visible from the air …
10.28 PW may only be interned on land and centres of internment must be established in healthy areas, with prisoners having facilities guaranteeing hygiene and health. 
Australia, The Manual of the Law of Armed Conflict, Australian Defence Doctrine Publication 06.4, Australian Defence Headquarters, 11 May 2006, §§ 10.25–10.26 and 10.28; see also § 5.20.
The LOAC Manual (2006) replaces both the Defence Force Manual (1994) and the Commanders’ Guide (1994).