## 5 Conclusions  
Surveying the Ochtina Aragonite Cave with terrestrial laser scanning provided the most actual and precise map of this very remarkable cave. This map, in several sectors refined by surveying with digital photogrammetry, is an important tool for a more detailed study of cave morphology including its structural and tectonic control as well as medium- and small-scale solution forms (ceiling cupolas \begin{table}
\begin{tabular}{c c c c} \hline \hline  & **TLS** & & **SfM** \\ \hline ✓ & high accuracy guaranteed by the manufacturer & ✓ & accuracy comparable to TLS for distances \\  & of LS & & typical in cave spaces \\ ✓ & quicker terrain survey of complex areas & ✓ & high-resolution of small-scale morphological \\ ✓ & artificial targets only for registration of & & features \\  & individual scans & ✓ & more suitable financial demands \\ ✓ & direct result of the terrain survey is the final & & ✓ & easy recording of all parts \\ ✓ & point cloud & & ✓ & alternate methods of scaling and orientation \\ ✓ & no need for special illumination (only if & & need for sufficient artificial illumination \\ ✗ & photo-textured point cloud is not needed) & ✓ & more time and data demanding survey of \\ ✗ & high financial demands & ✗ & larger areas \\ ✗ & instrumentation handling in narrow cave & & getting the final data (point cloud) can be \\ ✗ & space & & computationally demanding \\ \hline \hline \end{tabular} \(\checkmark\) - advantages; ✗ - disadvantages.  
\end{table} 
Table 2: A general comparison between Terrestrial Laser Scanning (TLS) and Structure-from-Motion (SfM). and smaller spherical cavities, flat ceilings, facets, cusped depressions, and some other morphologies originated in slowly moving or standing water). Morphostriographical cross-cutting relationships of some rock shapes, documented by several cross-sections of cave passages, reflect the main speleogenetic phases of the cave, especially the transition between phreatic and epiphreatic sculpturing resulting from the water table drop and its stagnation. Moreover, the terrestrial laser scanning made it possible to determine the basic surface and volumetric values of the cave. On the other hand, digital close-range photogrammetry allows obtaining detailed photo-textured 3D models of selected morphological structures in a relatively short time and with a high density of final data. Since both technologies have specific requirements, advantages, and disadvantages (accuracy, financial demands, demands of work especially in narrow cave spaces, and illumination of the surface); therefore, the combination of these methods has been shown as the most suitable for detailed mapping of complex cave spaces and capturing all of their specific features. The TLS makes it possible to obtain accurate spatial data on the overall shape and extension of underground spaces in a short time, while digital close-range photogrammetry (namely the SfM method) provides tools for very-high-resolution mapping of small-scale morphologies with the ability to use photo-texture from digital images, so a comprehensive data on the overall morphology in the most accurate and detailed way can be created. Since the Ochtina Aragonite Cave has opened to the public, the results of its new surveying are useable also for a solution of some other tasks related to human impacts on the cave environment; for example, microclimatic changes due to the movements of visitors in cave parts with different volumes and their negative influences on the fragile aragonite formations (following the studies of [PERSON] [48]; and others). Conceptualization, P.B. ([PERSON]) and J.G. ; methodology, K.P., K.B., and P.B. ([PERSON]); software, L.K. ; validation, P.B. ([PERSON]) and P.B. ([PERSON]); formal analysis, K.P. and K.B. ; investigation, K.P., K.B., and P.B. ([PERSON]); resources, P.B. ([PERSON]); data curation, J.G. and L.K. ; writing--original draft preparation, K.B. and P.B.