This article reports on the introduction of simulation (using a high fidelity patient simulator) into an undergraduate nursing curriculum in Northern Ireland to develop confidence and proficiency without compromising patient safety. It also reports on how the students perceived the impact of this experience on their clinical practice. The simulation was developed for third-year adult branch nursing students (n=90). Students attended in groups of six for a 4-hour session over a period of 8 days. The students participated in three case scenarios using a high-fidelity patient simulator (HPS). Students' responses showed that the simulation helped them to gain a perspective on the role of a qualified nurse and also enhanced their understanding of the relationship between theory and practice. Students also reported that they valued the experience as a means of highlighting gaps in their knowledge, but it also had given them confidence for future clinical practice.