The Samoan Islands are part of the broader SW Pacific region with their unique geological and geomorphological heritage sites dominated by their volcanic origin and their direct connection to the coastal and marine environment of the Pacific (Németh and Gravis 2022). The south-west (SW) Pacific is an expansive oceanic region with many of its islands difficult to access and relatively unexplored in a geoheritage context. Samoa is among the larger islands with both surface area and population perspective with an estimated human occupation span over 3 millennia (Addison and Matisoo-Smith 2010; Avis et al. 2007; Clark 1993; Clark and Michlovic 1996; Jackmond et al. 2022). This means that Samoa particularly rich in geocultural elements strongly linked to the natural environment (Sand et al. 2018). Many of ancient geocultural elements are still in practice of the everyday life and/or clearly traceable in traditions, customs legend. Many of such oral traditions are directly influenced or part of the broad aspect of geoheritage such as tattooing, dance, or various patterns in visual arts (Birkeland et al. 2008; Najita 2010; Németh et al. 2007; Schneider-Christians 1994). In a geotectonic context the SW Pacific is in the western extremity of the large. Old, and geological sense cold and rigid Pacific plate naturally segmenting apart through dominantly by various convergent plate margin processes such subduction and associated volcanic arc formation (Fig. 2.1). The plate margins are clearly visible along the entire Pacific marked by the location of earthquakes occurred in the past highlighting the zones where friction between the plates, magma generation and movement hence volcanism on the surface is more prominent (Fig. 2.2). The characteristics narrow zones where earthquakes and volcanism tend to occur along the Pacific Plates margin, commonly named as the Pacific Ring of Fire (Figs. 2.1 and 2.2). Alongside the dominantly subduction associated geotectonic elements, some large transform systems also act as displacing the edge of the Pacific Plate into plate fragments (Fig. 2.1). The reason behind this complex geotectonic situation is that the oldest part of the western Pacific Plate is far from its mid-ocean ridge spreading centre hence it had nearly 200 million of years to accumulate sediments to form thick (Boschman and van Hinsbergen 2016; Neall and Trewick 2008; Rowley 2008), cold and heavy edges along the old Pacific Plate region. Volcanism associated with plate boundaries is one of the most characteristic and recognisable geological processes linked with the Pacific in the public perception of the region. Volcanism is associated with arc-type geosystems forming complex and compound polygenetic volcanism in form of large stratovolcanoes emerging from the sea level offering majestic row of volcanic cones as islands where the subduction if prominent such as along Vanuatu or Tonga as part of the westward subducting Pacific Plate beneath the Indo-Australian Plate (Fig. 2.1). These stratovolcanoes are clearly majestic and due to their restricted surface areas, they often making them as focused geological heritage sites. While in modern, Holocene volcanoes across the SW Pacific arc systems their original volcanic landform is preserved, in older setting, significant erosion, coral reef formation and submergence created dissected volcanic islands commonly exposing deep internal part of former stratovolcanoes (Dickinson 1998; Ramalho et al. 2013; Thompson et al. 1998; Velmurugan 2008) such as the north-eastern part of Upolu Island and most of the American Samoan islands (Keating 1992; Stearns 1944a, b) (Fig. 2.3).