ELEVEN MONTHS OUT OF THE YEAR YOU CAN WALK AND BIKE TO THIS CACHE ,BUT THERE IS A MONTH WHEN THIS CACHE IS UNDER 20 FEET OF WATER AS THE GATES AT THE DAM ARE CLOSED TO PROTECT THE TOWNS DOWN RIVER FROM FLOODING.........AT THAT TIME THE TUNNEL IS COMPLETELY UNDER WATER AND UP TO 10 FEET ABOVE THE TUNNEL..........MOST OF THE TIME YOU CAN SEE THE HIGH WATER MUD LINES ON THE HILLSIDE ....HAD A SPOT HERE ON THE TRAIL TO FILL IN, BUT IT IS A GOOD PLACE FOR A PICTURE.......Preform....REHID OUT OF SITE...........JUST YOUR REGULAR TRAIL CACHE......HAVE FUN!!!!