西オーストラリアの天然記念物・トップ20

ボールド・ヘッド・トレイルの終点である丸みを帯びた花崗岩の頂上は、南氷洋の上に完全に露出しています。頂上からは、海岸線が一望でき、両側には切り立った崖がそびえ立っています。アプローチは、むき出しの岩や低い植生を横切り、足元が不安定な場所もあります。ここは避難場所がないため、風が強く、状況がすぐに変わることがあります。帰る前に景色を眺める時間をとる価値はあります。

Granite Skywalk is a suspended steel lookout built around the granite summit of Castle Rock in Porongurup National Park. The platform extends around the rock to provide sweeping views across the Porongurup Range and surrounding farmland, with distant views toward the Stirling Range on clear days. It is reached via the Castle Rock Trail, with the final section involving a short climb over large granite boulders and a ladder to the lookout.

Balancing Rock is a fantastic granite formation along the Castle Rock Trail. The large boulder seems to rest precariously on a narrow base, creating one of the most photographed features on the walk. It sits near the final climb to the Granite Skywalk and is a popular rest and viewing spot for walkers.

At approximately one 1,099 meters above sea level, Bluff Knoll is the highest peak in southern Western Australia. The summit is often cooler and windier than the plains below, with cloud cover and even occasional frost in winter. From the top, expansive views stretch across the Stirling Range and surrounding farmland. Weather can change quickly, so carry an extra layer. Stay on the marked summit area to protect fragile alpine vegetation.

Stirling Range National Park protects one of Western Australia’s most rugged mountain landscapes, known for its dramatic peaks and rich biodiversity. The park is home to Bluff Knoll, the highest summit in southern Western Australia, and is especially popular during wildflower season. A vehicle entry fee of $8 applies per car (up to twelve occupants). You can pay by card when you get to the park entrance or purchase the annual permit online. Weather conditions can change quickly at higher elevations, and temperatures at the summit are often much cooler than surrounding lowlands. Stay on formed tracks and carry sufficient water.

It's most beautiful during the blue hour of photography when the sun makes the window shine orange-red from the west.

Closed for repair as of May 2025. Check this link for status if you want to climb it (you can still view it while closed though) https://exploreparks.dbca.wa.gov.au/site/gloucester-tree

The Gloucester Tree was originally one of 8 fire lookout trees built in the south west. Foresters would climb these trees to the lookouts at the top to scan the area for signs of fires. Until 2023, it was possible to climb the tree but was currently closed as the platforms are being upgraded.