Are there any hooks for the event when an user navigates the verification URL?
Finally figured it out.

function my_module_lists_form_alter(&amp;$form, &amp;$form_state, $form_id)
{
    // Trigger when at password reset form
    if ($form_id == 'user_pass_reset')
    {
        // If $account has not been defined, define it from $user
        if (empty($account)) 
        {
            // Loads the user using the user id argument
            $account = user_load($form_state['build_info']['args'][0]);
        }

        // Log something
        watchdog('DEBUG MESSAGE:', 'We are there, user : ('.$account-&gt;mail.')!');
    }
}


If anybody has a better method, please do share.