The Sea Cliff Bridge cantilevered into the Pacific in 2005, replacing Lawrence Hargrave Drive's rockfall-prone section with 665 metres of steel and concrete suspended 30 metres above the Tasman Sea. Engineers anchored the structure to the Illawarra escarpment using post-tensioned cables and balanced-cantilever construction, a method that allowed lanes to remain open during the build. The bridge curves gently southward, its white balustrades and open deck designed to frame uninterrupted ocean views while withstanding salt spray and 180-kilometre-per-hour wind gusts. Today it serves as the visual centrepiece of the Grand Pacific Drive, a 140-kilometre coastal route that connects Sydney's southern suburbs to the Shoalhaven region. A Sydney to Kiama tour follows this ribbon of asphalt through a landscape shaped by Permian sedimentary rock, basalt flows, and 300 million years of tectonic compression. The Illawarra escarpment rises sharply inland, its forested ridges marking the edge of the Sydney Basin, while coastal cliffs expose strata of sandstone, shale, and coal measures. Kiama's blowhole, carved by wave action into Permian basalt, can propel seawater 25 metres skyward when swells align with the subterranean cavity. The town itself grew around cedar logging and dairy farming in the 1820s, its harbour later handling coal and agricultural exports until rail and road links redirected freight north to Port Kembla. Beyond Kiama the route turns inland toward Kangaroo Valley, a glacial valley framed by the Cambewarra Range and Barrengarry Mountain. The Kangaroo River meanders through dairy pastures and remnant rainforest, its upper catchment protected within Morton National Park. Eastern grey kangaroos, swamp wallabies, and red-necked pademelons graze at dawn and dusk along the valley floor. The Hampden Bridge, a 36-metre suspension span completed in 1898, remains the oldest of its type still carrying road traffic in Australia, its timber deck and wrought-iron chains restored in 2005. Coastal tours departing Sydney typically allocate two to three hours for the Sea Cliff Bridge segment, with stops at Bald Hill Lookout and Sublime Point offering elevated perspectives over the escarpment. The drive south reveals a succession of headlands, surf beaches, and lagoon mouths, each shaped by longshore drift and seasonal sand movement. Morning departures capture the best light for photography along the bridge, while westward-facing lookouts glow in late afternoon sun.