I think the effects are purely mental,

Not according to studies such as this:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2963322/?tool=pubmed

" ... physiological adaptations from heat acclimation include reduced oxygen uptake at a given power output, muscle glycogen sparing, reduced blood lactate at a given power output, plasma volume expansion, improved myocardial efficiency, and increased ventricular compliance, and enhanced force generation in the soleus muscle. Our observed increase in maximal oxygen uptake could be mediated by plasma volume expansion, improved myocardial efficiency, and increased ventricular compliance, which would allow larger end-diastolic volume."

There you go - they are physiological effects too.

Even more reason.

Mahoney thinks it will be unlikely like last years, a smaller camp might happen cloaser to season commencing.

From an article on Dees website. http://www.melbournefc.com.au/news/2013-09-26/mahoney-excited-by-new-challenge

"Mahoney added that a Northern Territory-style camp akin to last December was unlikely, although a camp was possible closer to the start of the 2014 premiership season.

“At this stage, we think it’s important with such a new coaching group coming in and the restricted time up until Christmas that we get as much time together as we can here in Melbourne,” he said.

“There will be opportunities to go away on a camp, probably closer to the season in February or March, so we’ll investigate those during that time.” "

We should go where Port went before last year...

We should go where Port went before last year...

Alberton Oval!