The cache is not at the listed coordinates. BYOP
The cache is located at:
S 45° AB.CDE'
E 170° FG.HJK'
The Northern-most airport in the world is a military post at Alert, Canada. It also the northern-most permanently inhabited settlement too.
The Latitude of this airport is given as XX°BX'XX"
The Northern-most airport in the world you can reach on a regular commercial flight is Svalbard Airport, Norway.
The Latitude of the airport is given as XX°KX'XX"
The Southern-most runway in the world is Jack F. Paulus Skiway, located right near the Amundsen-Scott base.
The Latitude of this runway is given as GX°XX'XX"
The Southern-most airport in the world you can reach on a regular commercial flight is Guardiamarina Zañartu Airport in Chile.
The Latitude of this airport is given as XX°AX'XX"
The Highest airport in the world is Daocheng Yading Airport, China. At an elevation of 44F1m.
The Lowest airfield in the world is Bar Yehuda Airfield, Israel by the shores of the Dead Sea. At an elevation of -3C6m or -37Cm depending on which website you use!
There are no regular commercial flights to Bar Yehuda Airfield. The Lowest airport in the world with commercial flights seems to be Atyrau Airport, Kazakhstan. At an elevation of -YZm (J=Y+Z). There are 4 airports in California that have a lower elevation than Atyrau Airport but I don't think they have commerical flights operating from them. They are either emergancy runways or small civil airports.
The most isolated airport in the world is Mataveri International Airport on Easter Island. It is 2HE3 km from Totegegie Airport in French Polynesia and 37D9 km from Santiago Airport, Chile.