Signal Hill aka Lion's Rump, is a landmark flat-topped hill located in Cape Town, next to Lion's Head and Table Mountain. The hill is also known as "The Lion's Flank", but this term is obsolete. Together with Lion's Head, Signal Hill looks like a lion sphinx.
Signal flags were used to communicate weather warnings as well as anchoring instructions to visiting ships in order to ensure that they prepared adequately for stormy weather while in the bay. Similarly, ships could use flags to signal for assistance if, for example, an anchor line parted during a storm.