10 Days in Australia: Sydney, Melbourne, and the Great Barrier Reef

A 10-day Australia itinerary covering Sydney, the Great Barrier Reef, and Melbourne hits the country's most iconic destinations and natural wonders. You'll experience world-class beaches, tropical snorkeling, vibrant cities, and unique wildlife—all while staying connected with Hello eSIM and tracking expenses effortlessly. Total costs range from $1,500–$2,500 USD per person depending on your travel style.

Sydney is Australia's gateway, and your first two days should immerse you in its most famous landmarks. On Day 1, arrive at Sydney Airport (SYD) and take a private transfer or train to your accommodation in the CBD or near Bondi Beach—expect to spend $20–$40 USD on transport. Spend your afternoon recovering from jet lag with a casual walk around the Opera House and Harbour Bridge precinct. Grab lunch at a local café (budget $12–$18 USD) and take a ferry across the harbour to Manly for sunset views.

Day 2 is for active exploration. Start your morning with the iconic Sydney Harbour Bridge Climb (around $300–$400 USD, but unforgettable), or opt for a more leisurely harbour cruise with lunch ($50–$80 USD). Afternoon activities include the Royal Botanic Garden (free entry) or Taronga Zoo ($35–$50 USD). End the day with dinner in The Rocks, Sydney's historic neighbourhood, where meals range from $15–$40 USD depending on the restaurant. Before you leave for the airport, ensure you're connected: grab a Hello eSIM plan for Australia so you can navigate, share photos, and stay in touch throughout your trip.

The Blue Mountains are a stunning day trip just 90 minutes west of Sydney by train. Catch an early morning train from Central Station (around $15–$20 USD return) and arrive by mid-morning to explore the dramatic cliff landscapes, eucalyptus forests, and scenic lookouts. Visit Echo Point for panoramic views, then take the scenic railway down into Katoomba Gorge ($20 USD). Lunch at a local café costs $12–$18 USD.

If you're feeling adventurous, try rock climbing, abseiling, or hiking one of the many trails—most guided experiences cost $60–$100 USD. The famous Three Sisters rock formation is the most photographed spot, so plan time for photos. Return to Sydney by evening train, arriving around 8 PM. This day trip costs roughly $80–$150 USD per person including transport, activities, and meals. It's a perfect break from the city and showcases Australia's natural diversity beyond beaches.

On Day 4, catch a domestic flight from Sydney to Cairns (around $80–$150 USD return, 3-hour flight). Cairns is the tropical hub and gateway to the Great Barrier Reef. Upon arrival, settle into your accommodation in central Cairns or the nearby beachside town of Port Douglas. Spend your afternoon exploring the Cairns Esplanade, a beautiful waterfront promenade with swimming lagoons, restaurants, and markets.

Day 5 is for experiencing the rainforest and local culture. Take the Skyrail Rainforest Cableway ($60–$80 USD), a 7.5-kilometre journey above the Daintree Rainforest canopy, or visit Hartley's Wildlife Park ($35–$50 USD) to see crocodiles, cassowaries, and other native animals. Dinner in Cairns or Port Douglas costs $15–$35 USD. The tropical climate is warm and humid, so pack light clothing and sunscreen. Use your Hello eSIM to download offline maps and book activities in advance—data plans start from 5GB and activate instantly, ensuring you're never without connectivity in this remote region.

Days 6 and 7 are dedicated to the Great Barrier Reef, one of the world's seven natural wonders. The reef is composed of close to 3,000 individual coral reefs and is best explored via a full-day guided tour. Most tours depart early morning (around 9 AM) from Cairns or Port Douglas and include catamaran transport to an outer reef pontoon.

Once at the reef, you'll have multiple options: snorkel in the sheltered coral lagoon ($120–$180 USD for the full-day tour including lunch), try scuba diving ($150–$250 USD for a certified dive), or view the reef from an underwater observatory or glass-bottom boat. The warm waters are home to colourful tropical fish, sea turtles, and vibrant coral gardens. Tours typically include a buffet lunch and marine biologist-led talks. Note that rising water temperatures have caused some coral bleaching in recent years, but the reef remains spectacular and worth visiting. Return to shore by 5 PM. Spend your evening relaxing at your accommodation or exploring Port Douglas's restaurants and bars ($15–$40 USD for dinner).

On Day 8, fly from Cairns to Melbourne (around $100–$180 USD return, 3-hour flight). Melbourne is Australia's cultural heart, famous for its coffee, street art, food scene, and vibrant neighbourhoods. Spend your afternoon exploring the CBD, visiting the State Library of Victoria (free entry), and wandering laneways filled with cafés, galleries, and street art. Dinner in Melbourne ranges from $18–$50 USD depending on the restaurant.

Day 9 offers flexibility. Visit the Great Ocean Road, one of Australia's most scenic drives (a 2-hour drive from Melbourne), to see the Twelve Apostles limestone formations ($40–$60 USD for a guided tour or self-drive). Alternatively, explore Phillip Island's Koala Conservation Centre ($25–$35 USD) or take a seal-watching cruise ($50–$80 USD). Both are within 90 minutes of Melbourne. Day 10 is your departure day—spend the morning shopping in Melbourne's laneways or visiting a local café for a final flat white ($5–$8 USD) before heading to the airport.

Throughout your Melbourne stay, use the Hello app's expense tracking feature to log meals, transport, and activities across multiple currencies. The app's AI receipt scanning and automatic exchange rate conversion make it easy to stay on budget and split costs with travel companions.

How much does a 10-day Australia trip cost? Budget travellers can expect $1,500–$2,000 USD (hostels, public transport, street food). Mid-range travellers should budget $2,000–$3,000 USD (3-star hotels, mix of restaurants, guided tours). Luxury travellers should plan $3,500–$5,000+ USD (4–5-star hotels, fine dining, premium experiences).

What's the best time to visit? Autumn (March–May) offers mild weather, fewer crowds, and is ideal for outdoor activities. Summer (December–February) is perfect for beaches and water sports but can be hot and humid in Cairns.

How do I get between cities? Domestic flights are the fastest option: Sydney to Cairns ($80–$150 USD), Cairns to Melbourne ($100–$180 USD). Flights take 3 hours and operate daily.

Do I need travel insurance? Yes—comprehensive travel insurance costs $50–$150 USD for 10 days and covers medical emergencies, flight cancellations, and lost luggage.

How do I stay connected? Buy a Hello eSIM plan before departure—plans start from 5GB and activate instantly upon arrival, eliminating the need for local SIM cards or expensive roaming charges. You'll stay connected for navigation, booking, and sharing your adventure.

Here's a realistic daily budget breakdown for a mid-range traveller:

For a 10-day trip, mid-range travellers should budget $1,850–$3,600 USD. Use the Hello app to track expenses in real-time: scan receipts with AI recognition, log voice entries, and automatically convert currencies. If travelling with friends, split costs instantly using the app's expense-splitting feature, which handles multi-currency conversions automatically. This keeps everyone accountable and makes settling up at the end of the trip painless.