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Aerial satellite view of Cobblestones surf break in Dompu Regency, Sumbawa, Indonesia
Dompu Regency, Sumbawa, Indonesia

Cobblestones

-8.823, 118.379
Edited by Thomas Jackson
Verified May 2026
Multi-checkedCross-checked against 2 references
A-frame · ReefIntermediate → Advanced3–8 ftApr – Oct

A deep-reef channel wave south of Lakey Peak, Cobblestones rewards the extra effort it takes to reach it with walled-up rights and barrelling lefts that pick up more swell than the main Lakey area. Best at mid to high tide on S to SW groundswell, 2-10ft, with easterly offshores grooming both peaks cleanly. The rights wall and section, the lefts barrel hard into the channel opposite, and a notoriously unforgiving end section known as the Cheeze Grater catches out anyone who doesn't exit early. Intermediate to advanced surfers only. Bottom: submerged reef. Season: Apr-Oct dry season swell window. Consistency: high when swell is running. Bring a step-up for solid size days, and be aware the wave draws a concentrated pool of experienced surfers precisely because it outperforms its neighbors when everywhere else goes small.

Wave fit

Skill suited
Intermediate → Advanced
BegIntAdv
Best months
Apr – Oct
J
F
M
A
M
J
J
A
S
O
N
D
Character
Hollow reef peaks with barrelling left and walling right.

Conditions

When it works
NESW
Swell window
S
S - SW
Offshore wind
E
Easterly
Optimum tide
Mid to high tide
Size range
2-10ft
High
Hazards
No concerns
Trip planning

Quick facts

Water temp
26° to 29°C
Wetsuit
Boardies
What to bring
  • Shortboard 6ft to 6ft 4in for everyday size
  • Step-up 6ft 6in to 7ft for 6ft+ days
Lineup
Some pressure on swells
Where it sits

Location

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About this break

What it's actually like

Crowd & Localism

The walk or zodiac ride filters out casual visitors, but the wave's reputation pulls traveling shortboarders and a sharp-end crew when it's on. Community reports it draws top-level surfers specifically because of the tube and the challenge. Weekends get crowded relative to the remote setting. Respect priority, call your waves early, and study the Cheeze Grater before paddling out.

Access & Facilities

Reach it by a 45-minute walk south of Lakey Peak or by renting a zodiac, which saves legs for the session. No parking, no facilities, no food or water on-site. Pack everything you need. The reef is exposed at low tide, so time your paddle-out for mid tide and watch the inside section on your exit.

Nearby Alternatives

When Cobblestones is too big or closed out, Lakey Peak is 400m north with its A-frame rights and lefts into channels. Lakey Pipe is just south of the Peak for a gnarlier reef option. On small days with NW winds, the south coast at Dedjoeng occasionally delivers quality rights.

10-day swell, wind and tide

Cobblestones surf forecast

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Forecast by Windy.app

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Frequently asked

Before you paddle out

Cobblestones is a reef break suited for intermediate to advanced surfers.
Cobblestones
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