On these three meanings of the word "immersion", see Immersion baptism. Some interpret this as meaning total immersion or submersion beneath the water. Since the 18th century immersion and submersion became more widespread. This occurs through a strategic approach such as structured English immersion or sheltered instruction. A shower uses less water than a full immersion in a bath. ArF excimer laser and liquid immersion techniques. A Mohawk language immersion school was established. Secondary French immersion is for students continuing on from elementary French immersion. CLIL is fundamentally based on methodological principles established by research on language immersion. He has sponsored multiple propositions promoting structured English immersion education. Prelude is available for both French Immersion and English students. The game includes a number of features to assist with immersion and the sandbox aspect. Others go even further and attempt to facilitate a complete immersion in virtual realms. Las Palmas Elementary is well known for its dual immersion program. Antigua is known as a destination for people who want to learn Spanish through immersion.