Jemeluk Secret Wall - Lombok & Gili Islands

Mathesons Bay is a spot we usually hit when the wind picks up a bit, or when we just want a relaxed dive that still feels like Poor Knights. It's properly sheltered, a calm contrast to some of the more dramatic outer walls. We always enter from the beach; it’s just easier, though you can scramble over the rocks at high tide if you’re feeling adventurous. The whole bay sits pretty shallow, topping out at around 7 metres. We often find ourselves just floating above the kelp and rocky reef, watching the triplefins dart around. The visibility averages about six metres, which, for a sheltered bay, is decent enough to really focus on the smaller stuff. We’ve had great luck spotting blackfoot pāua clinging to the rocks and green rock lobsters tucked into crevices. Keep an eye out for stingrays gliding over the sandy patches; they're pretty common here. It’s perfect for a long, slow dive, especially if you’re into macro life or just getting comfortable again after a break.

Location
Lombok & Gili Islands, Indonesia, Southeast Asia
Coordinates
-8.334100, 115.655300
Type
wall

Marine Protected Area: KK Karangasem

Best Time to Dive in Lombok & Gili Islands

The warmest water temperatures in Lombok & Gili Islands occur in December, averaging 30.1°C. The coolest conditions are in August at 28.3°C.

Monthly Water Temperatures

  • January: 29.6°C
  • February: 29.3°C
  • March: 29.6°C
  • April: 30.1°C
  • May: 29.9°C
  • June: 29.2°C
  • July: 28.5°C
  • August: 28.3°C
  • September: 28.6°C
  • October: 29.3°C
  • November: 30.1°C
  • December: 30.1°C

Nearby Dive Sites in Lombok & Gili Islands

Nearest Dive Centres to Jemeluk Secret Wall

Marine Life in Lombok & Gili Islands

Home to 258 recorded species including 153 reef fish, 44 sharks & rays, 37 hard corals, 10 seagrass & algae, 4 other, 3 clams & mussels.

Notable Species

Recommended Packing List for Jemeluk Secret Wall

Based on average water temperature of 29.4°C, currents 23 cm/s.

  • Shorty or Rashguard - warm 29°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 Jemeluk Secret Wall?
The Jemeluk Secret Wall dive site has a maximum depth of 20m, offering a comfortable range for many divers. However, a notable huge fan coral can be found by swimming down to nearly 30m, sometimes hosting pygmy seahorses. The average visibility at this site is 16m.
What kind of marine life and underwater features can divers expect to see at Jemeluk Secret Wall?
Divers exploring the Jemeluk Secret Wall can expect to encounter a vibrant array of marine life and impressive features. The site is characterized by a beautiful wall dive with a huge fan coral, often home to pygmy seahorses. You might also spot triggerfish, turtles, and western clownfish (Nemo) residing in a beautiful green fluo anemone. For more information on marine species, visit our wildlife database.
Is Jemeluk Secret Wall considered a difficult dive site, and what level of experience is recommended?
Jemeluk Secret Wall is classified as an intermediate dive site. This designation is partly due to the potential for currents to occur sometimes, which requires a certain level of comfort and experience in varying conditions. Divers with intermediate experience will be well-suited to enjoy this site.
What is the best time of year or day to dive Jemeluk Secret Wall for optimal conditions and visibility?
While the Jemeluk Secret Wall boasts an average visibility of 16m, specific data regarding the best time of year or day for optimal conditions is not provided. For general guidance on dive seasons, you can explore our when to dive section.
Do divers need an Advanced Open Water certification or higher to dive Jemeluk Secret Wall?
The Jemeluk Secret Wall is rated as an intermediate dive site. While the data does not explicitly state a required certification level, an intermediate rating suggests that divers should have a good level of experience and comfort in various underwater conditions. This often aligns with the skills gained through an Advanced Open Water certification or equivalent experience.
What are the typical current conditions at Jemeluk Secret Wall?
At Jemeluk Secret Wall, current can occur sometimes. Divers should be prepared for the possibility of encountering varying current conditions during their dive. This contributes to its classification as an intermediate dive site.