The 60 meter band or 5 MHz band is a relatively new amateur radio allocation (not strictly a band), first introduced in 2002, that was originally only available in a few countries, such as the United States, United Kingdom, Norway, Finland, Denmark, Ireland and Iceland.
Lying approximately halfway between 80m (3.5 MHz) and 40m (7 MHz), the 60 meter (5 MHz) band forms a communication bridge when propagation effects make use of 80 or 40m impossible for local-to-medium distance communications.
Since in Holland we are not allowed to transmit in this band (yet), I tuned into the 60m band on the WSPR frequency 5.2872 MHz. Received G en OZ stations:
All about the 60 m band: