Hmas Onslow

HMAS Onslow Visiting Hours, Tickets, and Sydney Historical Sites Guide

Date: 04/07/2025

Introduction

Nestled within Sydney’s bustling Darling Harbour, HMAS Onslow is a celebrated Oberon-class submarine and a cornerstone of Australia’s naval heritage. Preserved as a museum ship at the Australian National Maritime Museum (ANMM), Onslow now serves as an immersive, educational attraction that invites visitors to experience firsthand the challenges and triumphs of Australia’s Cold War-era submariners. From its commissioning during a time of global tension to its cutting-edge technological upgrades and eventual transition into a museum, HMAS Onslow is an essential destination for history buffs, families, and anyone interested in maritime innovation. This comprehensive guide covers visiting hours, ticketing, accessibility, historical context, and practical tips to make your visit memorable and enriching. For official details and planning, see the Australian National Maritime Museum official website. (museumships.us, Submarine Institute of Australia, Naval Historical Society of Australia)

Bow view of the submarine HMAS Onslow showing sonar dome, ship's badge on the sail, extended search periscope and radio mast

Quick Guide Contents

Introduction to HMAS Onslow
Historical Overview
Construction, Commissioning, and Service
Technological Advancements & Significant Incidents
Decommissioning and Preservation
Visitor Information
Location and Getting There
Visiting Hours and Tickets
Accessibility
Facilities, Safety, and Visitor Tips
Interactive Experiences and Education
Family & Group Visits
Nearby Attractions
Frequently Asked Questions (FAQ)
References

Historical Overview

Construction, Commissioning, and Service

HMAS Onslow (S 60) was one of six Oberon-class submarines introduced into the Royal Australian Navy (RAN) during the Cold War. Built by Scotts Shipbuilding and Engineering Company in Scotland, Onslow was launched in December 1968 and commissioned in December 1969. Arriving in Sydney in July 1970, she became an integral part of Australia’s naval strategy, helping to establish the First Australian Submarine Squadron based at HMAS Platypus (Submarine Institute of Australia).

Onslow’s design was renowned for quiet operation, robust construction, and advanced sonar capabilities. Specifications included a surface displacement of 2,186 tons, submerged displacement of 2,417 tons, and armament consisting of six 21-inch torpedo tubes for both MK48 torpedoes and Harpoon missiles.

Technological Advancements and Significant Incidents

A defining moment in her service was a 1984 upgrade at Cockatoo Dockyard, Sydney, making Onslow the first conventionally powered submarine in the world equipped with Harpoon guided missiles—a $39 million enhancement that solidified her role as a modern naval asset (Naval Historical Society of Australia). Additional upgrades improved her sonar systems and extended her operational relevance.

Onslow’s operational career was marked by participation in major naval exercises, intelligence gathering, and strategic deterrence during the Cold War. She “sank” a flotilla in Exercise Kangaroo 3 (1980) and the US carrier USS Carl Vinson during RIMPAC 1998, and was the first RAN vessel in the ANZUK force in Singapore (1972).

Notable incidents include:

1972 Depth Incident: A crew member’s disobedience led to a dangerous dive, resulting in a change to volunteer-only submarine service (museumships.us).
1981 Carbon Monoxide Fatality: Engine fumes caused a crew member’s death, prompting procedural reforms.
1995 Line-Crossing Ceremony: A controversial event led to changes in RAN tradition and crew welfare policies.

Decommissioning and Preservation

Onslow was decommissioned in March 1999, coinciding with the closure of the HMAS Platypus base. She was transferred to the ANMM and opened to the public in June 1999. Onslow is one of just seven Oberon-class submarines preserved worldwide and remains a powerful symbol of Australian naval heritage (museumships.us).

Ongoing Maintenance

Preservation efforts include regular dry-docking and refitting at Garden Island, with upgrades to hull coatings and interior displays to ensure long-term stability and visitor safety.

Visitor Information

Location and Getting There

HMAS Onslow is permanently berthed at the Australian National Maritime Museum at 2 Murray Street, Darling Harbour, Sydney. The museum is:

Walkable from the CBD (15 mins via Pyrmont Bridge)
Accessible by Light Rail: Pyrmont Bay stop
Reachable via Ferry: Pyrmont Bay Wharf (F4 route)
Serviced by Bus: 389 from Bondi Junction
Close to Parking: Paid options nearby (detailed info)

Plan your journey using Transport for NSW.

Visiting Hours and Tickets

Opening Hours: Daily 10:00 am – 4:00 pm (last vessel boarding: 3:10–3:20 pm). Extended hours apply during school holidays. Closed Christmas Day (source).
Ticketing: Entry to HMAS Onslow is included with the museum’s “Big Ticket” (all vessels/exhibitions). Purchase online or at the entrance (tickets), with discounts for children, families, seniors, and members. Children under 4 enter free (details).

Accessibility

Museum Facilities: Wheelchair accessible, with accessible toilets, parking, and support for guide/assistance animals.
Submarine Access: Due to original design, HMAS Onslow is not wheelchair accessible and involves steep ladders and confined spaces. Visitors with mobility challenges or claustrophobia may wish to enjoy alternative museum experiences (accessibility info).
Sensory Support: Sensory-friendly programs and backpacks available (programs).

Facilities, Safety, and Visitor Tips

Clothing: Wear comfortable, casual clothing and flat, closed-toe shoes suitable for climbing and tight spaces (visitor tips).
Bags: Large bags and strollers are not permitted onboard; storage available.
Photography: Permitted for personal use; restrictions may apply for tripods and flash (visitor info).
Dining & Amenities: Family-friendly café and gift shop onsite. Accessible toilets and baby change facilities available (Ripples Café).
Weather Precautions: Vessel access may be restricted during extreme heat (>36°C) or inclement weather.

Safety Note: Visitors must be at least 90 cm tall to board Onslow. Children under 4 or with limited mobility are best suited to other museum exhibits (source).

Interactive Experiences and Education

Action Stations Pavilion: High-tech exhibition featuring immersive cinematic presentations and interactive displays about submarine and naval life (Action Stations).
Guided Tours and Audio Guides: Knowledgeable volunteers and audio guides (multiple languages) share personal stories and operational context.
Hands-On Exploration: Engage with periscopes, bunks, and controls (where permitted), with staff and former submariners available to answer questions.
Family Programs: Interactive exhibits and activity trails cater to children and school groups (education programs).

Family & Group Visits

Child-Friendly: Recommended for ages 8+, with interactive learning spaces and family ticketing (group info).
Schools & Groups: Special rates and tailored programs available; book in advance (school programs).

Nearby Attractions

Darling Harbour is home to:

SEA LIFE Sydney Aquarium
WILD LIFE Sydney Zoo
Chinese Garden of Friendship
Other museum vessels: HMAS Vampire, HMB Endeavour replica

Nearby hotels include Adina Apartment Hotel Sydney, Darling Harbour (hotel info).

Frequently Asked Questions (FAQ)

Q: What are the opening hours?
A: Daily 10:00 am–4:00 pm (last boarding 3:10–3:20 pm). Check the ANMM site for updates.

Q: How do I buy tickets?
A: Online or at the museum; admission to Onslow is included with general entry.

Q: Is HMAS Onslow accessible for wheelchairs or strollers?
A: No, due to its design; however, the museum is accessible and offers alternative experiences.

Q: Are guided tours available?
A: Yes, check at the information desk or online for schedules.

Q: Are there height or age restrictions?
A: Children must be at least 90 cm tall. Ages 8+ recommended for submarine access.

Q: Can I take photos?
A: Yes, personal photography is permitted unless otherwise indicated.

Q: What are the COVID-19 guidelines?
A: Refer to the museum’s website for current health and safety updates.

References

Summary and Final Tips

HMAS Onslow remains a remarkable testament to Australia’s naval innovation and Cold War history. Its preservation as a museum ship offers a rare, immersive glimpse into the technological, strategic, and human aspects of submarine service. With engaging exhibitions, guided tours, and family-friendly amenities, the experience is both educational and inspiring. To maximize your visit, plan ahead using the museum’s official resources, arrive early, and consider exploring other Darling Harbour attractions. For the latest updates, exclusive audio tours, and more, download the Audiala app and follow the museum on social media.

We look forward to welcoming you aboard HMAS Onslow!

(museumships.us, Naval Historical Society of Australia, Submarine Institute of Australia)