Great easy bouldering around cosy nook (both ways along shore). V0-V3. Access is public if you stay proximal to the sea (use Pocket Maps app by Herenga ā Nuku if you want to view exact legal access, but if you stick proximal to the shore / near the rocks you are in the clear). Landings are mainly poor East of cosy Nook, improving as you go West. OK in any tide but low tide better. Big swell / SW wind - neither great (spray, and waves can be a hazard at some sites if big swell running)
There is bouldering on both sides of Cosy Nook - a small clump just to the East, or scattered problems for kilometers along to the west wrapping around torwards Monkey Island. Either park at the bay you pass 600m before cosy nook - right under the road - and walk along the gorgous golden beach torward cosy Nooks to the closest giant stacked, golden egg-shaped boulders, or park at cosy Nook and walk on West. Outcrops and boulders with immaculate easy bouldering on hard, crystalline plutonic (granite & cousins), sometimes metamorphic (gneiss) rock stretch all the way around to Frentzys point on the other side of the hill/headland (boulders at that end are faster accessed from that end, from the road end near Monkey Island and aloing the shore, or leave a bike/car at each end and do the whole tour one way - a beaut half-day boulder/hike with amazing views to Rakiura and Fiordland. Generally, the bouldering is more sparse at the frentzys/Monkey Island end, although the bouldering that does exist is very nice - tall-ish outcrops, less small boulders, looking straight over the the Fiordland ranges.