Trunk leak: Where exactly is the drain plug under 12V battery?

I've read so many helpful posts here about the leak issue. Mine's a 2008. Unfortunately there's an inch or more of water under my 12v battery and I see no drain plug from the underside -- and visibility from above is minimal, without removing battery which I'd really rather not do unless necessary. Can this mystery drain plug I keep reading about be located from below? If so, can someone tell me explicitly where?

Thanks!

 

I agree, it should be obvious. I've already taken a look around, and It's not obvious for me. Yet others state it exists. Hence this post.
I'll see if I can take out the battery tomorrow.

 

Thank you Steve! That is a helpful pic, and now when I'm underneath I'll at least have a relative idea of where the plug is... Fingers crossed and hoping it's removable from below...?!

 

Update: Found it! Not as obvious as I hoped with that picture in hand (that being taken from above, and me being positioned below with very little head clearance), but the rubber material was obvious and a bit of prying with a screwdriver loosened it enough to let a drip start flowing. Drained at least a quart of water! No battery removal required!

I then pryed up the 2 weather seals on the roof sides, and cleaned underneath. Both rear edges of the rain channel/gutter/trough seem to have microfractures as reported elsewhere in this forum. So I cleaned with isopropyl and a toothbrush, dried and applied silicone sealant, which proved a little tricky since it's transparent and I was relying on ambient outdoor (Oregon winter) light. Not to mention you need a super-thin swab tool to get at the channel in its thinnest portion.

Pix:

Plug, removed:


Plug location -- near the R rear wheel. (Someone please confirm that's the right hole! I took several pics really awkwardly with my phone down there and it was hard to tell)

Spare tire well: I removed plugs there in anticipation of more rain, replacing with plastic with a hole in center for drainage, duct taped. Temporary measure only, I hope!



Fracture, rear left side:



Fracture, rear right side: