The jungles, especially in the Cameron Highlands, were once the strongholds for rebels during the Emergency, so some caution is required when venturing into undeveloped areas; good maps are a must, and on occasions a guide would be recommended.
A compass is also requires when venturing into undeveloped areas.
mnli hypothesis: A compass is also requires when venturing into undeveloped areas. premise: The jungles, especially in the Cameron Highlands, were once the strongholds for rebels during the Emergency, so some caution is required when venturing into undeveloped areas; good maps are a must, and on occasions a guide would be recommended.