Outer Reef Yachts Adventure 780 Outer Reef Yachts Adventure 780
Sirena 88Sirena 88
VS

Outer Reef Yachts Adventure 780
vs.
Sirena 88

By YachtBuyer
YachtBuyer is the only place where you can directly compare competing yacht models, with full breakdowns on technical specifications and onboard features.

So with YachtBuyer you can not only enjoy the best data and market activity on your chosen yachts but also how they compare to their closest rivals.

Below, we delve into a detailed comparison of the Outer Reef Yachts Adventure 780 and the Sirena 88. The Outer Reef Yachts Adventure 780 features a steel fast displacement hull, ensuring durability and a lighter weight. The yacht's length of 23.95m/78'7" and beam of 6.75m/22'2" provide a stable and spacious platform for both at-sea and anchored conditions. The Sirena Yachts 88 is slightly longer at 26.81m/88', with a very similar beam of 7.1m/23'4",

Interested in owning a Outer Reef Yachts Adventure 780 or Sirena Yachts 88? Explore all globally available Outer Reef Yachts Adventure 780 for sale and Sirena Yachts 88 for sale verified through YachtBuyer MarketWatch, free of fake listings, or check out all similar models from Outer Reef Yachts for sale or Sirena Yachts for sale.

At a Glance

Outer Reef Yachts Adventure 780

Status
In Production
2025 - Present

Sirena 88

Status
In Production
2019 - Present
Outer Reef Yachts Adventure 780 illustration
23.95m  

Beam 6.75m

Draft 1.9m at Full Load

LENGTH : BEAM Ratio

0.00
:
1

8 Guests

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8

 

4 Cabins

4 Crew

Sirena 88 illustration
26.81m  

Beam 7.1m

Draft 1.8m

LENGTH : BEAM Ratio

0.00
:
1

12 Guests

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12

 

5 Cabins

3 Crew

Performance

  • Cruising Speed

  • Outer Reef Yachts Adventure 780
    0
    knots
  • Sirena 88
    0
    knots

  • Top Speed

  • Outer Reef Yachts Adventure 780
    0
    knots
  • Sirena 88
    0
    knots

Range

*Optional additional fuel tanks

Fuel Capacity

  • Outer Reef Yachts Adventure 780

    -

  • Sirena 88

    -
    OR
     
    *Additional fuel tanks

Interior

For most buyers, interior layout, finish and especially space will rank as some of the most important factors when choosing a yacht, here you can see how your chosen yachts directly compare.

Outer Reef Yachts Adventure 780 , Interior Outer Reef Yachts Adventure 780 , Interior
Outer Reef Yachts Adventure 780
Sirena 88, Interior Sirena 88, Interior
Sirena 88

Accommodation

Cabin design and luxury should deliver a place of real sanctuary for the Owner or guests, with finish, space and light all key.

Outer Reef Yachts Adventure 780 , Accommodation Outer Reef Yachts Adventure 780 , Accommodation
Outer Reef Yachts Adventure 780
Sirena 88, Accommodation Sirena 88, Accommodation
Sirena 88

Helm Station

Whether it will be the Owner or skipper taking control, helm positions should ensure excellent visibility, supportive seating and a design that delivers clear instrumentation.

Outer Reef Yachts Adventure 780 , Helm Station Outer Reef Yachts Adventure 780 , Helm Station
Outer Reef Yachts Adventure 780
Sirena 88, Helm Station Sirena 88, Helm Station
Sirena 88

Deck Areas

As well as being a place to enjoy the real essence of yachting lifestyle, decks are also a serious work area and each area must be safe, practical and so fun to use.

Outer Reef Yachts Adventure 780 , Deck Area Outer Reef Yachts Adventure 780 , Deck Area
Outer Reef Yachts Adventure 780
Sirena 88, Deck Area Sirena 88, Deck Area
Sirena 88

Flybridge

A superb place to enjoy days or nights on the water, this raised deck and driving position adds another dimension to yacht ownership and the driving experience.

Outer Reef Yachts Adventure 780 , Fly Deck/Sportdeck Outer Reef Yachts Adventure 780 , Fly Deck/Sportdeck
Outer Reef Yachts Adventure 780
Sirena 88, Fly Deck/Sportdeck Sirena 88, Fly Deck/Sportdeck
Sirena 88

Beach Club

A true beach club should be a waterside lounge and terrace. Usually at the stern, a beach club might open on one, two or three sides of the yacht. It should be practical, able to withstand plenty of use, watersports and saltwater, but also luxurious, creating a spectacular retreat day or night.

Outer Reef Yachts Adventure 780 , Beach Club Outer Reef Yachts Adventure 780 , Beach Club
No Beach Club
Sirena 88, Beach Club Sirena 88, Beach Club
Sirena 88

Compare Layouts

Flybridge

Outer Reef Yachts Adventure 780

Flybridge

Standard

Flybridge

Open flybridge Option

Sirena 88

Flybridge

 

Main Deck

Outer Reef Yachts Adventure 780

Main Deck

Standard

Main Deck

Optional extended salon Option

Sirena 88

Main Deck

 

Lower Deck

Outer Reef Yachts Adventure 780

Lower Deck

Standard

Lower Deck

Optional full beam master suite Option

Sirena 88

Lower Deck

 

Wheelhouse

Sirena 88

Wheelhouse

 

LIVE: Used Price Guides

Find out how much a pre-owned version of these models may cost based upon the asking prices of all yachts listed for sale globally in the last 3 years according to YachtBuyer Market Watch & our current sales listings.

Outer Reef Yachts Adventure 780 Used Prices

In Production Since: 2025

  • Average Price* -
  • Price Range † -
  • Average Age -

Available to order

View Options & Specs
Adventure 780 For Sale

or Build Your Own

 
 


Rivals to Outer Reef Yachts Adventure 780

Sirena 88 Used Prices

In Production Since: 2019

  • Average Price* £5.6m
  • Price Range † £4.9m - £6.3m
  • Average Age 4 years
£
£
£5.6m
£4.9m
£6.3m
£5.6m
Sirena 88 For Sale

or Build Your Own

*Based on 2 yachts offered for sale in the last 3 years.
†These yachts ranged from 3 - 5yrs old.


Rivals to Sirena 88

Specification Data

Model Name:Adventure 780Sirena 88
Builder:Outer Reef YachtsSirena Yachts
Range:Outer Reef Adventure Series -
Principal Characteristics
Body Type: Explorer Style Yacht Crossover, Flybridge, Superyacht, Motor Yacht
Use Types: Cruising Cruising
LOA: 23.95m 26.81m
Max Beam: 6.75m 7.1m
Draft: 1.9m  (Full Load) 1.8m
Gross Tonnage: - -
Displacement: 107,000 Kg  
(Approx)		 100,000 Kg  
(Full Load)
Hull Material: Steel GRP / Fibreglass  (GRP)
Superstructure: Steel Carbon Fibre
Fuel Capacity: 15,000 Litres 12,000 Litres  ( 16,500 Litres )*
Fresh Water Capacity: 4,000 Litres 2,400 Litres
Black Water capacity: 1,000 Litres 1,040 Litres
Yacht Designers
Exterior Designer: Bernd Weel Design German Frers
Interior Designer: Julian Moore Design Cor D. Rover Design
Accommodation
Guests: 8 (Optional 6) 12 (Optional 10)
Cabins: 4 - 3 5 - 4
Berths:2x Queen4x Single3x Double4x Single
Guests Heads: 5  (min 4) 6
Crew
Crew:4 3
Crew Cabins: 2 2
Crew Heads: 2 1
Engines & Performance
Max Speed:12.4 knots25 knots
Max Range: 3,000 NM @ 7 knots 2,100 NM @ 9 knots
Engine Options: -

Compare Engine Options

Brand: Cummins MAN MAN
Model:QSB6.7 425mhpV12-1550V12-1400
Qty: x x2 x2
Power: 419 bhp (312 Kw) each
@ 3,000 rpm		 1,550 bhp (1 Kw) each
@ 2,300 rpm 1,400 bhp (1 Kw) each
@ 2,300 rpm
Max Speed: 12.4 knots 23.3 knots 25 knots
Cruising Speed: 11.4 knots   17.9 knots @ 2000 rpm  16 knots  
Economic Speed: 7 knots   9.3 knots @ 1000 rpm  9 knots  
Max Range at Full Speed: 1000 nm @ 12.4 knots 377.3 nm @ 23.3 knots
Cylinders: 6 Cylinder 12 Cylinder 12 Cylinder

*With additional tank

Speeds/Ranges Are Approx. - Subject to Load, Sea Conditions & Variables.

Interested?

Find out more about the...

Adventure 780 For Sale Sirena 88 For Sale

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WRITTEN BY

Editorial Team

WRITTEN BY

Editorial Team

The editorial team at YachtBuyer consists of yacht specialists, seasoned professionals, renowned journalists, and individuals with a profound passion for the world of yachting.

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