New techniques for safeguarding valuables in a recreational, public setting are provided. In some aspects of the invention, a specialized portable safe is configured for insertion and securing into sand or other loose ground particles, with computer hardware controlling wireless locking, unlocking and alerting techniques. The alerting techniques may include local communications directed to a computer system within the safe's lockable compartment, enabling the extension of range and exporting signals with enhanced security through a smart device held within the safe. In other aspects, segregated scrap memory is provided, featuring data off-boarding from a main computer system and redundant control of user interface controls.