The results of an AMS dating programme presented here confirm the attribution of much (and quite likely all) of a large assemblage of human remains from Hay Wood Cave to the earlier Neolithic period. The use of the cave for burial is modelled as commencing in the period 3930-3715 BC and ending 3580-3350 BC (95.4% confidence). While the majority of the 10 dated individuals centre on 3600–3500 cal BC, two are significantly earlier, and indeed represent the earliest directly dated Neolithic individuals from Mendip. Stable carbon and nitrogen isotope data indicate a predominantly terrestrial diet, despite the proximity of the coast, less than 3 km distant. This is consistent with other results from Mendip, and from Britain overall, and provides further support for a rapid and relatively complete dietary transition between the Mesolithic and Neolithic. An intriguing question is what lay behind the decision to place human remains in either a cave or a monument.

A wholly new survey of Gough’s Cave is presented. This was carried out using a variety of different techniques, including magnetic and non-magnetic measurements and different methods of data collection. The resultant survey has been presented in a number of different ways, on paper and on computer.

Two previously unpublished early accounts of Goatchurch Cavern have been found and are presented here. Firstly, there is a letter from Reverend David Williams to the Royal Society in 1831 describing a visit to the cave and secondly, an extract from the notebooks of James Parker, now held by the Oxford University Museum of Natural History, dating from 1865, which includes the earliest known sketch of the cave. In addition, other early accounts are examined and their sources are identified. These accounts provide a description of the extent of the then known cave. The origin of the name is discussed and what the accounts tell us of the early state of the cave is examined.

In September 2010 one of the authors (GHN) discovered a Late Upper Palaeolithic engraving of a cervid in Cathole Cave on the Gower peninsula in South Wales. The cave site has been designated a Scheduled Monument (GM 349). As part of the remit to record this and other features within the cave, the Welsh heritage agency CADW commissioned a 3D digital survey of the main galley and side chambers of the cave. Data from this exercise allowed the production of an accurate plan of the south-western section of the cave to be made. However, due to technical constraints, the northern and north-eastern section of the cave could not be digitally surveyed. In July 2012 one of the authors (GHN) accompanied a small team of archaeologists and completed the survey, the results of this work reported in this paper.

Results are presented of dye tracing experiments around Otter Hole, near Chepstow, Wales. Data is given for historical work, work carried out by the author on Itton North and South swallets and some more recent tests. An attempt is made to understand discrepancies in the naming of swallets in this area and a summary list of sites is presented.

Details are presented of the cave sites investigated by the Society on a visit to Co. Mayo in June 2012. A survey, description and location information for Ballymaglancy cave and location of one newly investigated potential cave site are included.

A mass movement cave from the Triassic rocks of St Bees Head in Cumbria is described. This is the first such cave described from the area and the first to be found in Triassic strata in the north of England

The following notes are intended as an addition to the gazeteer published in 2011 (Murphy, 2011). There are seven new entries and five updates for sites already entered into the gazetteer.