This is a nice spot for I-295 travelers to take a break and find a cache. A hint for the container is given below. It's not a big container, but in another life it could have been. The encrypted hint gives away even more information.
Stretch Blow Molding Plastic soda bottles can be manufactured using several different methods. In one common two-step process, a thermoplastic resin such as polyethylene terephthalate (PET) is first molded into a "preform" using the injection molding process. Preforms are produced with the necks and threads of the bottles on one end. Once made, they are cooled, packaged, and used later in the stretch blow molding (SBM) process. In this second step, the preforms are placed in a mold, heated above the glass transition temperature, and then blown into bottles using high pressure air. The strain hardening characteristics of some polymers, such as PET, allow blown bottles to resist deformation from the pressures produced by carbonated beverages, which typically approach 60 psi.