The Bromo Tengger caldera can be easily accessed by jeep. Tourists are brought to a collecting point near Mt Batok in the sea of sand, from which they proceed either by walking or by horse to the base of the Mt Bromo volcanic cone, near the Pura Luhur Poten Hindu temple. A staircase leads to the top of the Bromo volcanic cone, from where tourists can view the interior of the cone. Mt Bromo is almost always emitting sulphureous gases and even erupts every now and then. The last eruption in June 2004 killed two tourists.