Scuba Diving at LT221

Diving atLT221 (Italy)

A World War II relic, the LT221 wreck, a pontoon boat, rests on the Italian seabed. Intrinsically, the site is linked to the fate of an American tug boat, sinking after an impact with a mine while being towed. It serves as a submerged testament to historical events, drawing divers interested in underwater heritage.

Tonight's objective overview for LT221 shows an air temperature of 17.1°C. The measured surface conditions include wave heights around 0.26m. This environmental data is logged for the close of the day.

Dive Site Coordinates

39.1486, 9.2411

Key Dive Site Facts

Max Depth40m / 131ft
Entry TypeBoat
Water Typesalt
Dive TypesWreck

Dive Site Overview

Exploring the LT221 site reveals a pontoon barge resting on a wide, sandy bottom, a silent witness to its World War II past. This intriguing structure, while only a few meters high and predominantly flat, provides an exceptional foundation for local marine ecosystems.

Situated approximately a mile from the American tug boat it was once associated with, the wreck descends to a considerable 50 m (164 ft). Its maximum depth, coupled with its distinct squared profile and deep placement, makes the dive site exclusively fitting for technical divers. The primary draw for many isn't solely its historical significance but its vibrant role as a naturalistic habitat.

For those equipped and trained in technical diving, the wreck offers ample observation points for its diverse inhabitants, allowing a close look at marine life adapting to artificial structures. Journeying down to these depths requires careful planning and execution, rewarding experienced divers with a profound sense of exploration and a deeper appreciation for this submerged history.

Despite its relatively simple, flattened form, the site promises an engaging exploration, revealing how time and the ocean transform human artifacts into thriving underwater communities.

Best Time to Dive

For optimal diving conditions at the LT221, planning a trip during the warmer months, generally from June to August, is advisable. Consistently, these months show "Excellent" dive scores in system data. During this period, wave heights are typically lower, averaging around 0.43-0.50 m (1.4-1.6 ft), and wind speeds are milder, ranging from 15.85-18.52 km/h (9.8-11.5 mph). Rainfall is also minimal, with July reporting as little as 0.02 mm. While specific water temperatures are not consistently reported, warmer air temperatures, peaking at 28.19°C (82.7°F) in July, suggest more comfortable surface conditions and potentially warmer shallow water. Improved visibility often coincides with calmer sea states, enhancing the deep wreck experience. Outside these peak summer months, conditions still rate as "Good," but divers should anticipate slightly choppier seas and cooler surface temperatures.

Jan: GoodScore: 7/10
Feb: GoodScore: 8/10
Mar: GoodScore: 8/10
Apr: GoodScore: 8/10
May: GoodScore: 8/10
Jun: ExcellentScore: 9/10
Jul: GoodScore: 8/10
Aug: ExcellentScore: 9/10
Sep: GoodScore: 8/10
Oct: GoodScore: 8/10
Nov: GoodScore: 8/10
Dec: GoodScore: 8/10
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Excellent
Good
Moderate
Poor
Unsafe

Climate Historical Averages

Monthly records compiled from satellite and marine observation nodes over the last 3 years. Data provided by Open-Meteo and MET Norway.

Month
Air Temp
Max Waves
Wind Speed
Rain
January12°C1.0m23 km/h3.3 mm
February13°C0.8m22 km/h2.5 mm
March14°C1.0m22 km/h2.4 mm
April16°C0.7m20 km/h1.4 mm
May19°C0.6m18 km/h2.2 mm
June25°C0.5m16 km/h1.0 mm
July28°C0.5m19 km/h0.0 mm
August27°C0.4m18 km/h0.3 mm
September24°C0.5m17 km/h0.9 mm
October21°C0.7m18 km/h1.6 mm
November16°C0.7m20 km/h1.0 mm
December13°C0.8m21 km/h1.5 mm

Dive Experience & Conditions

Descent to the LT221 wreck is a journey into the deeper technical limits of diving, requiring careful preparation. As divers move through the water column, visibility can remain generally good, particularly during the calmer summer months, enhancing the view of the open water before reaching the bottom. Approaching the 50 m (164 ft) maximum depth, divers will observe the pontoon barge spread across the sandy bottom. Water temperatures in these deeper zones are not consistently reported but are typically cooler than surface waters, necessitating appropriate thermal protection. While specific current information is limited, conditions in the open sea can vary, meaning divers should be prepared for potential moderate flow and plan their dive accordingly. Navigating the wreck itself, given its relatively flat and spread-out nature, demands good buoyancy control to avoid disturbing the sandy seabed and to effectively explore its features.

Dive Difficulty & Safety Guidelines

Safety for a dive at LT221 starts with acknowledging its technical diving depth. A dive to 50 m (164 ft) requires advanced certifications, proper training in deep diving, and technical equipment suitable for extended bottom times and decompression. Divers must meticulously plan gas mixes and consumption, accounting for increased pressure and potential for narcosis at these depths. Maintaining excellent buoyancy control is crucial to avoid entanglement with wreck structure or disturbing fine sandy sediment, which could significantly reduce visibility. Always dive with a reliable buddy team and carry redundant systems. Prioritize continuous monitoring of your dive computer and gas supply, and be prepared for self-rescue or assisting others. Effective communication and adherence to established dive plans are fundamental for a safe and rewarding experience.

Recommended Equipment

No verified equipment items yet.

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Verified equipment recommendations for this dive site are being reviewed and may be added as additional source checks are completed.

Recommended Dive Suit

Divers planning relaxed exploration may appreciate the warmth of 5-7mm wetsuit. Divers often notice that perceived temperature can feel cooler during deeper or longer dives.

The waters surrounding LT221 are currently maintaining temperatures close to 18°C (64°F). Surface air temperatures are resting at 17°C (63°F).

Weather projections show fairly stable environmental conditions ahead.

Conditions last reviewed: 18:00 using the latest environmental data.

Dive Logistics & Preparation

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Hyperbaric Chamber

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Entry Requirements

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Currency

EUR

Nearest Airports

Nearest airports to help plan travel to this dive area.

✈️Cagliari Elmas AirportCAG
20 km
✈️Alghero-Fertilia AirportAHO
184 km
✈️Olbia Costa Smeralda AirportOLB
196 km

Marine Life at LT221

Upon arriving at the LT221 wreck, divers often first notice the abundance of lobsters, which find refuge within the structure's crevices and under its flat surfaces. The wreck's role as a vital habitat extends to other species commonly found on local wrecks. Scorpionfish, masters of camouflage, blend seamlessly with aging metal and surrounding sand, requiring a keen eye to spot. Moray eels and congers also inhabit the wreck, often peering out from hidden spaces, adding to the site's rich biodiversity. Observing these creatures provides insight into the thriving ecosystem that has developed around this historical artifact.

Dive Centers Near LT221

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Frequently Asked Questions

What type of dive is LT221?

LT221 is primarily a technical wreck dive. Its considerable depth and overall profile are best suited for divers with advanced training and experience in deep and technical diving procedures.

What is the maximum depth at LT221?

The wreck lies on a sandy bottom at a maximum depth of approximately 50 meters. Such a deep site places it firmly within the realm of technical diving.

What's the history of the LT221 wreck?

The LT221 was a pontoon boat that sank during World War II. It met its end after impacting a mine while being towed by an American tug boat, to which its fate is closely linked.

What marine life can I expect to see at LT221?

This wreck serves as an ideal habitat for numerous species. Divers frequently encounter lobsters, scorpionfish, moray eels, and congers making their home among the wreck's structure.

What are the general conditions like at the LT221 dive site?

Conditions can vary, but during peak season, expect good visibility. Water temperatures at these depths are generally cooler, while surface air temperatures range significantly throughout the year. Wave heights are typically calmer in summer.

Is LT221 suitable for recreational divers?

No, LT221 is not recommended for recreational divers. Its extreme depth and the specific technical demands of wreck diving at this level require advanced certifications and experience.

When is the best time to dive LT221?

The optimal time to dive LT221 is during the summer months, from June to August. During this period, dive scores are "Excellent," with lower wave heights, milder winds, and minimal rainfall, generally leading to better conditions.

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