I'll add a bit about Public Health and Addiction Medicine (which replaced Otolaryngology, Ophthalmology and Addiction Med):
This run is 3 weeks of public health and 1 week of addiction med.
Public Health
The Public Health component is relatively relaxed, with mostly half-days of classes, but one day a week you'll have off-site visits in the morning, and classes at the med school building in the afternoon.
Fair warning: if you start on public health you may find yourself thinking "I thought we left ELM!", whereas most of the class will go there after the SEGO run and will find it a much-needed holiday after the surgical run)
Assessments for public health include a SAQ test on the third Friday, a group assignment (more on this below), and the main lecturer will assess your professional attitude based on participation in (her) tutorials, so make sure you get a bit of contribution in - but don't talk for the sake of talking, and if you're about to say something inflammatory/controversial try to phrase it in a gentle academic debate kind of way
Now, for the group assignment, the entire group (12-14 of you) will have to work on it together (which is inherently difficult) to produce a 4,500-word report. The project (at least this year) is about 'Burden of Disease', so your group will be allocated a disease (COPD, prostate cancer, breast cancer etc), and there will be three parts to the project. Part I is a description of the epidemiology and the current burden of disease, Part II is a rundown of preventive measures currently undertaken, and Part III is an evaluation/appraisal of a specific preventive measure.
The groups generally split into three subgroups; each sub-group is meant to contribute 1,500 words towards the main written report, and in addition, Parts I and II have a presentation each, at the end of week 1 and 2 respectively. From what the staff said to us in emails it seems like they think sub-group 3 should be putting the main report together, but most groups have an editor or two that are dedicated to writing the main report, doing the referencing (you'll rack up >50 references easily, so using EndNote is highly recommended - the library has tutorials about this), and keeping an eye on the big picture (so they can write the Executive Summary).
Important:
DO NOT be the editor - it increases your workload dramatically, and you have to try and please everyone while trying to get them to do their parts, so it's exhausting and it sucks (note the highly biased views there). This is especially true if you go through public health at a time when the pathology exams are happening (August-September).
Addiction Medicine
Once the holiday (or hell, for editors) that is public health is over, you have a week of Addiction Medicine, a branch of psychiatry (I think). For this you'll have a solid 9-5 week (except Thursday which is vertical module teaching). There will be classes, and the most important classes are the Brief Intervention Workshop and the Alcoholism: Assessment & Treatment tutorial, which basically teach you how to sit the Addiction Med OSCE (which will either be taking an addiction history or performing brief intervention) - I would avoid missing either of these two classes, as that would make your life much harder.
Also required are attendance at a recovery group (such as Alcoholics Anonymous) and writing a report about it; an afternoon clinical placement in a rehabilitation facility and doing a presentation about it; and writing a Letter to the Editor on a topical issue, which you have to read to the group, who will vote on the best ones to submit to the local newspaper (if the winners of this contest are comfortable doing so).
For the OSCE: as long as you revise how to take an addiction history and how to do a brief intervention, and practice a couple of times beforehand, you should nail it. It'll probably be an alcohol scenario, and a common scenario is "this is their drinking history on a sheet, read it, and perform a brief alcohol intervention".
Thoughts
I personally found Public Health / Addiction Medicine to be a rather... mind-broadening four weeks. Much was learned (and much was forgotten as we visited the local pub too many times at lunch time) and a greater appreciation of the world (and the amazing alcoholic ginger beer at the pub) was gained.
But on a serious note, it was eye-opening to see what public health physicians do (which I don't think is for me), and addiction medicine gave me a whole new way to conceptualise addiction and addicts, as well as some completely different views on cannabis. (Yes, you're allowed to use the word "addict", unlike what they say in the overly-PC HIC classrooms.)
If you're one of the six groups to have this some time after the surgical run, you'll enjoy the relaxing change; if you're the one group starting on it, you'll probably get frustrated at the lack of clinical environment; and if you're the one group to have this after the Healthcare of the Elderly run, you'll probably feel something completely different which I won't be able to predict
EDIT: Good lord, did I really write that much? I didn't mean to. Guess I should have another round of the amazing alcoholic ginger beer and go home (on the bus... and fall asleep and end up at Hornby Mall then decide to take a different bus to explore the city and not end up going home until 5 hours later - true story)
EDIT2: Formatted a little to make it more readable, necessary since I've unintentionally written an essay.