IOLANTHE
Protected Area
South Dorset
Why dive here
With 176+ marine species recorded in the area - including blue sharks, dolphins, dwarf minke whales, humpback whales and ocean sunfish (mola mola) - IOLANTHE offers some of Cornwall & Devon's richest wreck diving. Water ranges 10-18°C, warmest July, August, September.
The Iolanthe sits upright at 41 metres, a proper deep dive that’s worth the effort. We love the scale of this wreck; it’s a big steamship, over 99 metres long, and the bow section, in particular, makes for a dramatic entry. Dropping down, you’ll start to pick out the superstructure, usually draped in fishing nets, with the ship’s ribs creating dark alcoves. What we really enjoy here are the signs of its age – the hull plates are peeling away in places, giving you glimpses into the inner workings, and the sheer volume of life that’s colonised it. Conger eels are always lurking in the darker corners, their heads poking out from the collapsed sections, and you’ll often find large bib and pollack schooling around the stern. It's a fantastic historical dive for experienced wreck enthusiasts. A strong torch is essential to cut through the gloom and really appreciate the details. Dive it on a slack tide for the best chance to explore the expansive deck.
Typical IOLANTHE Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Maximum depth 41m exceeds recreational limits (40m). Technical diving certification and equipment required.
Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.
Always perform a 3-minute safety stop at 5m before surfacing.
Nearest Dive Centres to IOLANTHE
Dive shops near IOLANTHE
Divers Down
Dive Beyond Limited
Old Harbour Dive Centre
Mayim Mermaid Academy
Dorset Diving Services
TAL Scuba Ltd.
Reviews for IOLANTHE
Conditions
Ocean conditions, forecast and tides for IOLANTHE
IOLANTHE Ocean Conditions
Monthly averages for IOLANTHE, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (50.44, -2.73) (3km away)
October Averages
Sea Temperature
17°C
62°F · Range: 15.1–17.5°C
Air Temperature
13°C
56°F
Wind Speed
8.14 m/s
15.8 knots
Atmospheric Pressure
1011 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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