An area originally consisting of three separate small sub-blocks which are generally centred ~15 km north-northeast of Ceduna has been explored for possible buried economic Tertiary heavy mineral sands (HM) marine placer deposits. The main intent was to test for the presence of marine Ooldea Sands in this more southwards-located portion of the area between the Barton and Ooldea Ranges, the so-called ‘Bay of Plenty’ palaeogeographic feature, which hosts the Mojave and Kalahari HM occurrences. In 2007, on the south-western edge of EL 3811, the licensee undertook limited first pass regional exploratory aircore drilling on interpreted ?Neogene beach facies heavy mineral (HM) trapsites, completing a mere 5 vertical open BQ rod size holes for just 70 m, none of which intersected economic mineralisation. Optical mineralogical examination of the sachets (the panned HM portion of a drill cuttings sample) gave an approximate compositional breakdown of 20% ilmenite, 30% iron hydroxides (goethite/limonite), 10% leucoxene, 10% zircon, and 30% magnetic trash mineral species (haematite/magnetite). The magnetic trash content increases with hole depth, suggesting that the mineralisation had developed in situ from basement weathering and subsequent wave concentration. In 2008, Iluka's drilling targeted interpreted Eocene regressive shorelines, focussing on the seaward side of an inferred headland environment. 30 open vertical NQ aircore holes for 800 m were drilled along several traverses spaced 400 m to 800 m apart, and 73 selected downhole drill cuttings samples were submitted for heavy mineral assaying. In 2009, the drilling addressed two targets. The first involved follow-up of some low grade mineralisation that had been discovered in 2008, and the second was another interpreted Eocene shoreline position. 29 holes for 1114 m were completed, and 72 selected downhole drill cuttings samples were submitted for heavy mineral assaying. The 2008-2009 drilling encountered poorly developed marine sands with little evidence of HM accumulation. In hindsight Iluka concluded that relatively high basement elevations and shallow surface RLs must have precluded the development of a substantial marine sequence. No significant HM intercepts were made; only three holes returned assays grading above 1.0%. The un-drilled remainder of EL 5249 lay on the leeward side of the headland, and was considered to have low prospectivity. Because of the poor drilling results obtained from its deemed adequate drillhole coverage, Iluka decided to fully surrender the tenement.