For those interested in exploring the Portland's coastal environment, there is perhaps no better way than kayaking. The intimate nature of this water sport (it's you and the kayak � that's all) allows paddlers to closely examine landmarks and water views. Casco Bay is an excellent location for such recreational enjoyment. A typical kayak journey begins by gliding past five-story tall ocean tankers, racing kayaks and pleasure boats that occupy Portland Harbor. Once out into less crowded waters, there is a wealth of sights and sounds to enjoy. It is possible to paddle past long abandoned military forts that once guarded Portland's shoreline, as well as viewing seafaring birds and even seals at feeding or play. Perhaps the best attraction, however, are the plentiful uninhabited, state-owned islands located throughout the bay. Kayakers frequently come ashore these islands to indulge in the singular sensation of enjoying lunch with spectacular ocean views. You may also wish to explore these islands which feature their own unique forested landscapes and rock formations. For those who choose to kayak, keep in mind that Casco Bay typically features ocean tides and currents which can be challenging. If you are new to this sport, keeping close to shore is always recommended.