Don Don · Gerupuk
Gerupuk Bay, South Lombok, Indonesia · Reef break
Local time — · Sunrise 05:45 · Sunset 18:15
Reading the ocean.
SWELLRADAR is requesting a verified marine run for Don Don · Gerupuk.
Spot intelligence.
Don Don is a separate A-frame in Gerupuk Bay, not a beach break or another name for Inside Right. Local schools use it for progression, but the boat-access reef is not an automatic first-lesson recommendation. Intermediate is a conservative grade for independent planner suggestions.
Profile source · LMBK Surf House · Don DonProfile sources & limits
Reviewed 19 Oct 2026 · not observation-validated
Published sources reviewed by SWELLRADAR, not validation against measured breaking waves. Swell-from and wind-from axes are independent qualitative ranking inputs, not surveyed shoreline bearings. The inherited generic 0.6–3.0 m offshore-model height bands are unchanged: they are not measured local surf limits, safe learner ranges or wave-face conversions. Requested marine points are not takeoffs. Relative tide preferences do not establish water depth, a safe entry or a preferred rising/falling phase. Assess the actual bank or reef, currents and personal ability locally. LMBK describes S–SW swell but names W and NW wind in different sections; another published guide favours N–NE. No single wind direction receives a bonus. LMBK's mid and mid/high descriptions support only a soft relative preference, not a tide-motion rule. Its conflicting consistency claims do not establish a minimum activating swell or an empirical forecast adjustment.
- LMBK Surf House · Don Don
A-frame reef/sand peak, S–SW swell, boat access, mid/high preference and internally differing wind/consistency descriptions
- Semeton Surf · Gerupuk guide
Local school's distinction between Don Don's A-frame and the separate Inside/Outside rights, with condition-specific coaching
- Indonesian Surf Guide · Don Don
Independent published N–NE wind description differs from LMBK; retained as a limitation, not a scoring axis
Source-informed axes
Swell axis SSW · 203°
Wind axis pending · Intermediate profile
Wave
A-frame reef peak · left and right
Reef with sand patches
Swell window
S–SW · sheltered bay peak
0.6–3.0 m offshore ranking band
Clean wind
Light winds · direction needs local check
No wind-direction bonus
Tide window
Mid to high · qualitative preference
Qualitative timing guidance
Field guide
Read the break.
Character · setup · local read
Field guide
Read the break.
Character
01Don Don · Gerupuk is defined by a-frame reef peak · left and right over reef with sand patches. The shape can change with swell angle, period and the active section, so the live score should always be paired with a visual check from shore.
Best setup
02S–SW · sheltered bay peak swell, light winds · direction needs local check and mid to high · qualitative preference form the profile baseline. SWELLRADAR retains 0.6–3.0 m as an offshore-model ranking band, not a measured local surf limit or a breaking-wave prediction.
Lineup read
03Choose a peak that matches your experience and reassess it as tide and crowd change. Pay particular attention to reef below the lineup, boat-access logistics, shared lesson and takeoff areas. Local signs and advice always take priority.
Know before you paddle
Live conditions and local advice always override this profile.
Optional community layerRecent surfer reportsVoluntary and potentially incomplete. Not used for the forecast or Surf Score.
The break
Reef break
Intermediate. Works best with S–SW · sheltered bay peak swell.
Timing
Light winds · direction needs local check
Mid to high · qualitative preference. Re-check local observations and the lineup before you paddle out.
Data note
Model data unavailable
SWELLRADAR withholds numerical conditions, scores and surf windows until a quality-checked marine forecast is available.