A network of eerily beautiful underground tunnels extends for several kilometres near the village of Santa Rosa. They formed when the outer layer of a lava flow solidified, allowing the interior to continue flowing, leaving the hollow lava tunnels for travelers to explore freely. They are vast and have electric lighting, making them easy to explore independently, or with the help of hired guides.

Built on the remains of the old Moorish mosque, the building started out as a Parish Church, ascending in importance, as Archiprestal (1281), Collegiate (1413) and finally becoming a Cathedral in 1510. Building started at the end of the 13th Century. It is of Levantine Gothic Style, with three naves and a gallery, a transept transformed by Pere Compte at the beginning of the 16th Century and side chapels between the buttresses. Of note inside is the ironwork, the Baroque organ, the work of Jacinto Perales and the choir stalls, made by Juan Bautista Borja and Tomás Llorens (1716-1718). The sacristy is home to the relics cabinet and cupboard, the work of José Ganga (1732-1734), holding diverse relics within a carved bust. On the outside, of note in the Tower, built between the late 13th Century and the mid-14th Century, the same as the three main gateways, The Puerta de Cadenas (14th Century), Puerta de Loreto (15th Century) and finally, the Portada de la Anunciación, completed by Juan Inglés in 1558.

Palmeral de Orihuela constitutes an interesting agricultural system of intensive irrigation of Islamic origin with date-trees situated on the borders of the banks, paths and irrigation canals. You can either reach this area by means of path tracking through el Collado del Oriolet, or go jogging or cross-country through the orchards of palm trees.

Lying on the former northern defence line of the city, this English-style public park is a beloved place for outdoor activities, be it a walk, a picnic or duck watching. Adorned with magnificent foliage and ponds, the park also serves as a backdrop to vibrant cultural events, most notably the Noorderzon Performing Arts Festival in August.