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Rock Bridge Memorial State Park
573-449-7402

Devil's Icebox Wild Cave Tours - Footwear and Lighting

Examples of footwear from best to most unacceptable.

Footwear Requirements and Recommendations

Click on the tread print samples on the left to view a larger version.

Best
3/4-top or high-top rubber sports cleats (as used in football, softball or soccer) perform well in mud but may be slippery on rocks.  Low-cut cleats do not provide ankle support and are not allowed.

Average
Army jungle boots with a semi-lug type of sole, nylon uppers and full ankle support.  Gore-Tex boots may perform well, but cave mud will likely ruin the Gore-Tex material.

Poor
Army combat boots with ripple soles perform poorly in mud; leather uppers do not drain well.  Hiking boots with small, narrowly spaced, 3/16" lugs provide poor traction.

Unacceptable
We will not allow low-cut boots or shoes (less than three-quarter top) as they do not provide enough ankle support; sneakers; smooth-bottomed work boots; rubber pullovers; slip-on boots; boots with zippers or Velcro; open-toed shoes; and any without sufficient tread (less than 3/16").

 

 

 

 

 

 

 

 

 

 

 

Headlamp Checklist

Ten points to consider before purchasing

As no single headlamp likely has all of the above features, use the checklist below to select a suitable headlamp. Criteria are listed in order of priority.

1. Will lamp survive submersion in mud or water?

2. Does the lamp have a long burn time (hours of light on one set of fresh batteries)?
The primary cause of lamp failure is when moisture, dirt or mud enters the battery or lamp housing. This happens especially when changing batteries or bulbs. The more difficult or complicated the procedure, the more likely moisture or dirt will impact lamp functioning. The less you need to change the batteries, the less chance you'll have lamp failure. Using a small cloth to clean and dry hands prior to opening housing can help prevent lamp failure. Note: Halogen and xenon bulbs usually burn brighter than standard bulbs or LED-lamps, but also require more power (heavier batteries and/or more frequent battery changes). Standard incandescent bulbs require less power than halogen lamps and are usually brighter than many 3-6 LED lamps. LEDs use less electricity, and require fewer, if any, battery changes during a WCT and do not require spare bulbs

3. Can you change the batteries easily in complete darkness?
Can you easily remove batteries (slide or push rather than pry them out)? Can you open battery housing without using a coin, screwdriver or other tools? We recommend you practice changing batteries in the store (if possible) and at home.

4. Does the lamp provide sufficient light for a large, dark-walled area?
Much of the main cave passage is spacious with the dark-colored walls absorbing much of the light. This makes it difficult to see beyond your immediate area if lamps are not bright enough. Lights that are bright enough for normal camping, backpacking, climbing or even smaller caves may not be sufficiently bright enough for much of the Devil's Icebox main cave passage.

Does the lamp illuminate a long distance (5m is poor, 10-15m is average, 15-25m is good, 25m+ is excellent)? Can you adjust between narrow and wide beams (distance vs. immediate area)? Does lamp have reflective housing to increase amount of light per bulb or LED? Did you check LED configuration for maximum brightness (triangle vs. in-line, etc.)? See if the store will allow you to test lamp brightness in a dark room. Keep in mind that each person differs in how much light is required for an area to be sufficiently bright.

5. How reliable and durable is the headlamp overall?

6. Does lamp have option to easily switch between various light settings or power sources without removing batteries or needing to change a module?
This means switching from high-output bulb to a low-output bulb or from high to low power on the same bulb(s).

7. Does headlamp mount easily and securely on helmet?
Odd shapes are difficult to mount. Head straps that go both over and around the helmet are helpful.

8. Is a spare bulb included (required for Devil's Icebox WCTs)?
If not, you will have to purchase one.

9. Is the lamp lightweight?
Weight is affected most by number and size of batteries and may be distributed in front, in back, or as a detachable battery pack carried on a belt or in a pocket.

10. How much should you pay?
While adequate lights are available for $25-$35, you tend to get what you pay for. Most lamps under $25 are not designed for caving purposes and are usually more susceptible to moisture and dirt. If you have uses for a headlamp on other adventures or activities, it is usually worth it to spend a little more for a quality headlamp.

Where can I purchase caving equipment?

Suppliers that carry caving headlamps and/or caving gear include wilderness supply/sporting goods stores, sporting goods sections in department stores, some hardware stores, various catalogs and Web sites related to sporting goods, wilderness supply, climbing, camping and caving. Local (Columbia, Mo.) specialty stores that carry caving lights and/or other caving gear include the following:

Alpine Shop III
1102 Broadway East
Columbia, MO 65203
573-817-2955
Bass Pro Shop Sportsman Center
3100 Vandiver Drive
Columbia, MO 65202
573-886-7100
Captain Nemo's Dive Shop
1414B Rangeline Street
Columbia, MO 65201
573-442-3483
ArmyGear.net
1500 I-70 Dr. SW
Columbia, MO 65203
Play It Again Sports
1206 Business Loop 70 West
Columbia, MO 65202
573-442-9291
Walt's Bicycle, Fitness & Wilderness Co.
1217 Rogers Street
Columbia, MO 65201
573-886-9258
Best tread. Excellent Tread. Good Tread. Fair Tread. So So Tread. Maybe Tread. Unacceptable Tread. Unacceptable Tread.