Gukomera k'ubutaka no gukomera kw'isafuriya ni imbogamizi zikomeye ku kongera umusaruro w'ibinyampeke. Gufunguka cyane—ni inzira y'ingenzi mu guhinga neza—bigabanya isafuriya ikomeye, bikongera umwuka uhumeka mu butaka no kubika amazi mu butaka, kandi bigatera imiterere myiza yo guhinga...
Mu rwego rwo kuvugurura ubuhinzi, gusya no gusubiza ibyatsi mu murima ni ingenzi mu kongera uburumbuke bw'ubutaka no guteza imbere ubuhinzi bwita ku bidukikije. Nk'ikintu cy'ingenzi gikoreshwa mu kugarura ibyatsi n'ibisuguti, kuramba no kudakira ingaruka z'ibyatsi...