You've been bitten by the geocaching bug and would like to create your own geocache for others to find. The geocaching containers you choose to use should be sturdy, waterproof and should blend in with the environment. Although commercial geocaching containers are available to purchase, you can also use anything from film canisters to plastic jars as long as they meet several requirements that will ensure the longevity of the cache and the safety of geocachers.
Decide on the type of geocache you would like to create. Geocaches are containers that include at a minimum a logbook for geocachers to record their name and the date they found the cache and possibly also swag, or treasures, which can vary from children's trinkets to coins to small outdoor supplies. Micro caches are very small, the size of a thimble, for example, and can be very tricky to find. Some are magnetic and others are painted to blend right in with a tree trunk or leaves. Think about how devious you want to be with your cache.
Determine the size of your geocache. The size of your geocache will depend on the geocache location and the items, if anything other than a log, which will be included in the geocache.
Identify geocaching container options. Once you determine the size of the geocaching container, consider various options, keeping in mind certain characteristics that all geocache containers should have, such as being waterproof, having a tight seal and coloring to blend in the its surroundings. Geocaching containers need to be able to survive the elements but also need to be protected against accidental discovery. Good examples of geocache containers are film canisters, ammo boxes, plastic mayonnaise or peanut butter jars, or any other waterproof metal or plastic containers.
Choose a container that supports the theme of your geocache, if you have chosen one. It doesn't have to be elaborate, but if you've chosen a school theme, for example, you could use a plastic lunch box that has a tight seal.
Ensure that the geocaching containers can open easily and don't have any sharp points or rough edges that could injure geocachers.