Isles of Scilly, Penzance, St Mary’s and Cornwall are entering a significant new phase for tourism planning as the islands prepare for major changes in connectivity and visitor capacity. The Integrated Impact Assessment Scoping Report consultation supporting the Isles of Scilly Local Plan 2026–2041 closed in August 2026, while construction of the new Scillonian IV passenger ferry moves towards its planned 2027 introduction. Together, the developments are putting transport, accommodation, infrastructure and the visitor economy firmly into the long-term tourism conversation.
Key Stats
- Local Plan period: 2026–2041
- IIA consultation: 10 July–14 August 2026
- New passenger ferry: Scillonian IV
- Scillonian IV capacity: 600 passengers per sailing
- Capacity increase: 24%
- Scillonian IV length: 75 metres
- Current ferry: Scillonian III
- Scillonian IV replacement date: March 2027
- Scillonian III annual passengers: More than 110,000
- New vessels investment: More than £40 million
- Mainland ferry gateway: Penzance
- Main island gateway: St Mary’s
The Local Plan Is Bigger Than A Planning Exercise
The Isles of Scilly’s new Local Plan is designed to guide development across the islands through 2041, covering housing, the economy, infrastructure, climate resilience, environment, landscape and heritage.
The council formally began the plan process in April 2026, while the Integrated Impact Assessment scoping consultation followed during July and August. The consultation was an assessment-stage exercise rather than consultation on the finished Local Plan itself.
For tourism, that distinction matters. The islands’ visitor economy is closely connected with the availability of accommodation, transport capacity, local employment and infrastructure.
Planning for those elements therefore has a direct bearing on how future tourism growth can be accommodated.
Penzance Is Preparing For A Bigger Ferry Connection
Now comes the part travellers will notice most: Scillonian IV.
The new passenger ferry is being built to replace Scillonian III, which has served the islands for decades. The 75-metre vessel was launched in March 2026 and is scheduled to enter service in March 2027.
Its capacity of 600 passengers per sailing represents a 24% increase over the existing vessel, creating additional passenger capacity between Penzance and St Mary’s.
The new ship also incorporates roll and pitch reduction systems and modern propulsion technology designed to improve passenger comfort and operational efficiency.
Why Capacity Matters For Island Tourism
The Isles of Scilly’s tourism economy depends heavily on reliable connections with mainland Cornwall.
The existing Scillonian III carries more than 110,000 passengers annually, illustrating the scale of the visitor movement supported by the ferry service.
Increasing capacity provides additional scope for visitors to reach the islands during busy periods, while improved onboard facilities are designed to make the journey itself more comfortable.
The ferry therefore functions as more than a transport service. It is a critical part of the tourism infrastructure connecting accommodation providers, restaurants, attractions and island businesses with their mainland market.
Five Islands Give Visitors Different Experiences
The Isles of Scilly comprise several inhabited islands, each offering a different tourism experience.
St Mary’s is the main administrative and transport hub, while Tresco is known for its gardens and coastal landscapes. St Martin’s offers beaches and walking routes, while Bryher and St Agnes provide quieter island experiences with beaches, coastal paths and small-scale tourism.
Travellers can combine several islands using inter-island boat services, although schedules are seasonal and weather-dependent.
The islands’ appeal is closely connected with their landscapes, beaches, wildlife and slower pace, making connectivity particularly important for tourism.
Tourism Growth Must Fit A Fragile Island Environment
The Local Plan process also places environmental protection alongside economic development.
The islands have a distinctive landscape and heritage environment, with limited land and infrastructure compared with mainland destinations.
That makes questions around housing, water, waste, transport and climate resilience particularly important when considering additional tourism capacity.
The emerging planning framework is intended to balance these competing needs while determining how the islands can meet their requirements through 2041.
Housing And Seasonal Employment Are Part Of The Tourism Story
Tourism businesses require workers, but island destinations can face significant housing constraints.
For the Isles of Scilly, accommodation for residents and seasonal workers is therefore closely connected with the ability of hotels, restaurants, visitor attractions and transport businesses to operate.
The Local Plan evidence base includes housing and economic needs assessments alongside tourism-related evidence, placing the visitor economy within the wider question of how the islands function year-round.
Air Travel Adds Another Route To Scilly
The ferry is not the only way to reach the islands.
Skybus operates flights to St Mary’s from mainland airports including Land’s End, Newquay and Exeter. The 2026 schedule also expanded options from Newquay, providing additional flexibility for visitors who prefer air travel.
This combination of ferry and air access gives travellers more options when planning island holidays, although weather can influence both forms of transport.
Travel Details For International Visitors
International visitors can reach Cornwall through major UK gateways before continuing towards Penzance. Penzance Harbour is the principal mainland departure point for Scillonian services.
St Mary’s is the principal arrival hub for ferry passengers, with inter-island boat services connecting the inhabited islands.
The UK uses the pound sterling (£).
Travellers should book ferry or flight services ahead during peak summer periods and check weather-related travel information before departure.
FAQ
1. When will Scillonian IV enter service?
The new passenger ferry is scheduled to replace Scillonian III in March 2027.
2. How many passengers will Scillonian IV carry?
It will carry 600 passengers per sailing, representing a 24% increase in capacity.
3. Does the Local Plan consultation mean new tourism development has been approved?
No. The consultation was part of the assessment and preparation process for the Local Plan 2026–2041 rather than approval of a completed development strategy.
Timeline And Events
- 22 April 2026: Isles of Scilly Local Plan process formally commenced.
- 10 July 2026: Integrated Impact Assessment Scoping Report consultation opened.
- 14 August 2026: IIA scoping consultation closed.
- 28 March 2026: Scillonian IV was launched at its shipyard.
- 2026: Scillonian III continues scheduled Penzance–St Mary’s services.
- March 2027: Scillonian IV is scheduled to replace Scillonian III.
- Spring 2027: The next major Local Plan consultation stage is scheduled.
Conclusion
The Isles of Scilly are approaching a pivotal period in their tourism journey. The new Local Plan is examining how housing, infrastructure, environment and the visitor economy can develop through 2041, while Scillonian IV is preparing to increase mainland passenger capacity from Penzance. With ferry, air and inter-island connectivity all central to the visitor experience, the coming years could reshape how the islands accommodate tourism while protecting the landscapes and communities that make Scilly distinctive.
