Grandma’s Garden - Iron Bottom Sound

We love an easy wreck dive, and the Lesleen M off Anse Cochon really delivers. Sunk back in '86, this cargo ship is well-colonised now, meaning you get the structure of the wreck mixed with serious growth. Our favourite part is swimming through the cargo holds; keep an eye out for horse-eye jacks circling in the deeper sections, and we often spot big blue parrotfish grazing along the deck. The Vicky B, a fishing boat scuttled in 2018, is a short swim away – it’s a newer wreck, so still quite intact, with barracuda often hanging off the bow. With a maximum depth of 21 metres and generally calm conditions, it’s a comfortable dive for anyone who enjoys exploring sunken history without pushing the limits.

Location
Iron Bottom Sound, Solomon Islands, Central & South Pacific
Coordinates
-7.588900, 158.766400
Type
wreck

Marine Protected Area: Kia

Best Time to Dive in Iron Bottom Sound

The warmest water temperatures in Iron Bottom Sound occur in January, averaging 30.5°C. The coolest conditions are in December at 30.5°C.

Monthly Water Temperatures

  • January: 30.5°C (air: 26.9°C)
  • February: 30.5°C (air: 26.7°C)
  • March: 30.5°C (air: 26.7°C)
  • April: 30.5°C (air: 26.8°C)
  • May: 30.5°C (air: 26.9°C)
  • June: 30.5°C (air: 26.5°C)
  • July: 30.5°C (air: 26.5°C)
  • August: 30.5°C (air: 26.3°C)
  • September: 30.5°C (air: 26.5°C)
  • October: 30.5°C (air: 26.7°C)
  • November: 30.5°C (air: 26.7°C)
  • December: 30.5°C (air: 26.9°C)

Nearby Dive Sites in Iron Bottom Sound

Nearest Dive Centres to Grandma’s Garden

Marine Life in Iron Bottom Sound

Home to 415 recorded species including 320 reef fish, 29 hard corals, 18 sea snails & nudibranchs, 16 sea cucumbers, 7 seagrass & algae, 5 clams & mussels.

Notable Species

Recommended Packing List for Grandma’s Garden

Based on average water temperature of 30.5°C.

  • Shorty or Rashguard - warm 30°C water needs minimal exposure protection
  • Mask - essential for every dive
  • Fins
  • BCD - buoyancy compensator
  • Regulator - your most safety-critical piece of gear
  • Dive Computer - tracks depth, time, and NDL
  • Surface Marker Buoy (SMB) - essential for boat pickups
  • Dive Torch - useful for crevices and colour at depth
  • Underwater Camera - capture your diving memories

Frequently Asked Questions

What is the typical depth range for diving at Grandma's Garden in the Solomon Islands?
The dive site at Grandma's Garden starts at three meters and extends down to twenty meters, with a maximum depth of 19 meters. This makes it suitable for various experience levels, including snorkelers who can enjoy the vibrant life in the shallower 3-meter area.
What kind of marine life and coral can divers expect to see at Grandma's Garden?
Divers at Grandma's Garden can expect to encounter large, colourful fan corals, some up to three meters wide, covering the bommie reef. The site is teeming with lots of smaller reef fish, and at deeper sections, you might spot larger pelagic species such as trevally and GT.
How difficult is the Grandma's Garden dive site, and is it suitable for beginner divers?
Grandma's Garden is rated as an intermediate dive site, primarily due to the bi-directional currents influenced by tidal movements. While snorkelers can enjoy the vibrant shallow areas, beginner divers should be comfortable with currents or dive with an experienced guide.
What is the best time of year to dive Grandma's Garden for optimal conditions?
The provided data does not specify a "best time of year" for diving Grandma's Garden. However, the site experiences bi-directional currents influenced by tidal movements, which are sheltered from winds. For general information on optimal diving seasons, you can explore our When to Dive section.
What scuba diving certifications are typically required to dive at Grandma's Garden?
The data provided does not specify particular scuba diving certifications required for Grandma's Garden. Given its intermediate difficulty and maximum depth of 19m, an Advanced Open Water certification or equivalent is generally recommended to fully explore the site. Always check with local dive operators for their specific requirements.
What are the usual current conditions and visibility like at Grandma's Garden dive site?
At Grandma's Garden, divers can expect bi-directional currents that are influenced by tidal movements, although the site is sheltered from winds. The average visibility at this vibrant bommie reef is typically around 12 meters, offering clear views of the extensive fan corals and marine life.