Traverse a tree in Django CMS using familiar "Next/Previous" buttons. (not sure if this will work in 3.0 when it is released) This works up to 3 levels. For more levels, append more "next" logic to the bottom. e.g. current_page.parent.parent.parent...

django_cms_nav.html

{% load cms_tags %}

<ul class="pager">
  {% if current_page.get_previous_sibling %}
    <li><a href="{% page_url current_page.get_previous_sibling %}" role="prev">&larr; Previous</a></li>
  {% else %}
    <li><a href="{% page_url current_page.parent %}" role="prev">&larr; Previous</a></li>
  {% endif %}
  {% if current_page.children.exists %}
    <li><a href="{% page_url current_page.children.all|first %}" role="next">Next &rarr;</a></li>
  {% elif current_page.get_next_sibling %}
    <li><a href="{% page_url current_page.get_next_sibling %}" role="next">Next &rarr;</a></li>
  {% elif current_page.parent.get_next_sibling %}
    <li><a href="{% page_url current_page.parent.get_next_sibling %}" role="next">Next &rarr;</a></li>
  {% elif current_page.parent.parent.get_next_sibling %}
    <li><a href="{% page_url current_page.parent.parent.get_next_sibling %}" role="next">Next &rarr;</a></li>
  {% endif %}
</ul>