Australia is a vast and diverse country with many interesting things to see and do. Here's a sample itinerary for your group for five days in Australia, avoiding crocodile habitats:

Day 1: Sydney

Visit the iconic Sydney Opera House
Take a stroll through the Royal Botanic Garden
Explore the vibrant neighborhoods of Surry Hills and Darlinghurst
Visit the Art Gallery of New South Wales
Walk across the Sydney Harbour Bridge
Day 2: Blue Mountains

Take a scenic train ride from Sydney to the Blue Mountains
Hike through the stunning Blue Mountains National Park
Visit the Three Sisters rock formation
Enjoy a scenic drive along the Waradah Aboriginal Centre
Day 3: Port Stephens

Drive to Port Stephens (2 hours from Sydney)
Visit the stunning beaches of Nelson Bay and Shoal Bay
Take a dolphin watching tour
Visit the sand dunes of Stockton Beach
Day 4: Hunter Valley

Drive to the Hunter Valley (2 hours from Port Stephens)
Visit local wineries and taste some of Australia's finest wines
Take a hot air balloon ride over the vineyards
Explore the town of Cessnock
Day 5: Return to Sydney

Visit the Taronga Zoo to see Australia's native animals
Take a ferry to Manly Beach for a swim or a surf
Explore the historic Rocks neighborhood
Please note that this itinerary is only a suggestion, and you can customize it to your preferences and interests.
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