Year 13 recently went to Pwll Du and Year 12's went to Oxwich to collect data to use for their A Level courses. Year 13 carried out a random sampling technique to compare the means of organisms growing in different locations of Pwll Du. Year 12 carried out systematic regular sampling to discover whether organisms change over an environment. On both occasions the students collected a huge array of data which has been used to draw conclusions about the environments. On both sampling trips members of the public approached members of staff stating how well behaved and respectful the students of Olchfa school were.