Enceladus, an enigmatic satellite. It orbits Saturn among many other moons, but the observations by Cassini of Enceladus were perhaps the most eagerly awaited. Enceladus did not disappoint: After Cassini's arrival in the Saturnian system interest has surged for this tiny moon. Many fascinating phenomena are taking place and Cassini has been observing these phenomena since 2005. From its rich and diverse surface, to its connection with Saturn's E-ring, to its high albedo; all are special phenomena. What makes Enceladus unique, however, is the region near its south pole. There, geysers spew material, including salts, from the interior of the satellite into space through openings in its icy crust. These openings or cracks are called ``tiger stripes'' and their orientation and position prove to be difficult to explain. The area near these tiger stripes is anomalously hot, with temperatures reaching far higher than anticipated. These high temperatures indicate heat is being transported from the interior to the surface, but this happens only near the south pole. The observed heating output is much larger than can be explained by current models for planetary heating. These observations make Enceladus and especially its south pole one of the most fascinating places in our Solar system. One special feature on Enceladus is its subsurface sea. Enceladus' subsurface sea is likely confined to the southern latitudes. Since the tiger stripes are located at the South pole and Enceladus' subsurface sea is likely confined to the region below the South pole, these two features seem linked. Did Enceladus' subsurface sea play a role in the formation of the tiger stripes? ince the field of ocean dynamics is very large, attention is restricted to one type of motion in the ocean: wave attractors. A wave attractor is an attractor for internal waves. These are waves that have their maximum displacement in the interior of a fluid. This is different from surface waves, which have their maximum displacement at the surface. These internal waves can only exist when the fluid in which they propagate is stratified in density, i.e. the density decreases continuously in the direction opposite to gravity, or angular momentum. Such a stratified fluid is a stable system and occurs in many places in the Earth's oceans. Fluid bodies in nature are often stably stratified in density due to differences in temperature or salt concentration. This provides these fluid bodies with a restoring force in terms of gravity that is absent in homogeneous fully-contained fluids. This restoring force points in a particular direction (radially for the density-stratified fluid), which renders the fluid anisotropic. Perturbations of such stably stratified fluids appear as waves that orient themselves to the anisotropic direction; i.e. they propagate under a particular fixed direction that is inclined with the anisotropy direction. Waves of given frequency (e.g. tides) preserve this inclination when reflecting from any boundary, in particular also when reflecting from a sloping boundary. The consequence of this constraint is that for almost any shape of basin, these waves are focused onto a particular limit orbit, called wave attractor. The focusing on an attractor is accompanied by an intensification of the wave field, such that intense shearing motion is confined to the immediate vicinity of the wave attractor. The two requirements for wave attractors to exist are tides, which excite internal waves, and a stratification, which carries the internal waves. Enceladus experiences tides due to its eccentric orbit. The stratification can be in angular momentum, certainly present for a rotating Enceladus, or in density, which is created by salts and these have been observed in the geysers, or a combination of both. So the two main ingredients for wave attractors to exist are present on Enceladus. On Enceladus the top of the basin is formed by the icy crust above its south polar sea. The locations of the tiger stripes could be those locations where the wave attractor reflects from this top boundary. The wave attractors focusses energy on its path and the elevated temperatures at the tiger stripes could be due to the wave attractors. The wave attractors allow the phenomena of the tiger stripes and the localized heat output to be explained by processes in the interior of a fluid and ties the observations of salts in the geysers and Enceladus' eccentric orbit to these features. Wave attractors provide a unique approach in the field of planetary sciences, not only because they are a new idea in this field, but also because a direct relation between processes in an interior sea and the (observed) behaviour of an icy crust are used to explain observed features on an icy crust. Furthermore, wave attractors might have applications at other icy satellites. The so-called chaos terrain on Europa might be caused by an wave attractor that changes its path due to changing boundaries of the liquid beneath the chaos terrain.