Hey guys, the lockers at MK are NOT (exactly) under the train station anymore.
They just moved the "locker-room" (and installed NEW lockers) from the original location (centered below the Main Street Railroad Station), to the new location (inside the building to the RIGHT of the right-hand "entrance tunnel" into MK, just after you scan your ticket and fingers.
The lockers at all 4 theme-parks are the same price:
$7.00 a day (you will get a $2 "refund" when you return the key).
If you park-hop in the same day, you can get another locker at the 2nd (or 3rd or 4th) park you visit without paying again (except for another $2 REFUNDABLE key deposit) if you keep your dated locker receipt and/or a little green "tag" that the locker person will give you.
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