Just my opinion on drains in general - it's the summer storms that usually kill people.
Dungeon is riskier than many as it is so long and sometimes rain clouds can form over the water & catch you off guard. I've checked the rain radar & there's been nothing on the screen, then later when it started raining I checked it again, and sure enough there were rain clouds. I could see them forming over Blass Straight (on the BoM app, not by looking out to sea
).
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