Positions quoted in this Preliminary Notice reproduced below are referred to WGS84 or a compatible datum and may be plotted directly on this ENC. 
Some or all of the information contained in this Notice to Mariners may have been included on the ENCs affected.

3498(P)/25 PHILIPPINE ISLANDS — Luzon — Buoyage. Channels. Channel depth. Pilot boarding place. Port development. Breakwater. Anchor berths. Anchorage area. Quarantine anchorages. Depths. Wreck. Coastline.
Source: Philippine Notices 1/17/23, 2/25/23, 7/64/24, 8/80/24, 6/18/25, NAMRIA NAVPHIL 229/24, ENC PH5MHR40, Philippine Chart 1501 and UKHO

	1. *Extensive changes to charted detail have taken place within Manila and Approaches, including numerous changes to coastline, depths, anchorages and buoyage. The most significant of these are as follows:

	2. The existing buoyed channel leading into South Harbour has been removed.

	3. *A new buoyed channel with a least depth of 14·6m has been established between 14° 34' .322N. , 120° 53' .990E. and 14° 34' .325N. , 120° 57' .081E.

	4. *A new approach channel, marked by west cardinal buoys, has been established along a line joining the following positions:

		14° 34' .32N. , 120° 53' .99E.

		14° 33' .71N. , 120° 52' .12E.

		14° 31' .97N. , 120° 49' .88E.

		14° 30' .66N. , 120° 48' .99E.

		14° 26' .16N. , 120° 44' .02E.

	5. The pilot boarding place in position 14° 33' .251N. , 120° 56' .014E. has been moved to position 14° 34' .000N. , 120° 52' .990E.

	6. *The West Breakwater in position 14° 34' .350N. , 120° 57' .340E. has been shortened.

	7. *Depths less than charted exist within Manila South Harbour and Approaches. The most significant are as follows:

		Depth		Position

		8·7m		14° 34' .762N. , 120° 57' .494E.

		8·1m		14° 34' .874N. , 120° 57' .925E.

		7·9m		14° 34' .825N. , 120° 57' .957E.

		3·9m		14° 33' .908N. , 120° 57' .514E.

		4·2m		14° 34' .183N. , 120° 58' .407E.

		1·2m		14° 34' .461N. , 120° 58' .487E.

		2·0m		14° 33' .772N. , 120° 58' .264E.

	8. *Depths less than charted exist within the approaches to Pasig River. The most significant are as follows:

		Depth		Position

		4·5m		14° 35' .306N. , 120° 55' .750E.

		0·8m		14° 35' .613N. , 120° 57' .296E.

	9. *A stranded wreck has been reported in position 14° 35' .454N. , 120° 57' .041E.

       10. New quarantine anchorage areas have been established, bounded by the following positions:

		14° 31' .21N. , 120° 50' .21E.

		14° 32' .14N. , 120° 53' .80E.

		14° 33' .99N. , 120° 53' .83E.

		14° 33' .55N. , 120° 52' .02E.

		14° 32' .92N. , 120° 51' .88E.

		14° 32' .63N. , 120° 50' .78E.

		14° 32' .27N. , 120° 50' .79E.

		14° 32' .19N. , 120° 50' .18E.

	11. 	and

		14° 31' .93N. , 120° 45' .88E.

		14° 30' .09N. , 120° 45' .92E.

		14° 30' .56N. , 120° 47' .64E.

		14° 32' .10N. , 120° 48' .97E.

		14° 32' .53N. , 120° 48' .86E.

       12. A new anchorage area has been established, bounded by the following positions:

		14° 33' .68N. , 120° 50' .00E.

		14° 33' .24N. , 120° 47' .61E.

		14° 32' .66N. , 120° 47' .45E.

		14° 33' .10N. , 120° 49' .84E.

       13. New anchorage berths have been established in the following positions:

		14° 33' .57N. , 120° 54' .49E.

		14° 32' .96N. , 120° 54' .49E.

       14. The existing quarantine anchorage area and berths have been removed within an area bounded by the following positions:

		14° 32' .851N. , 120° 54' .996E.

		14° 32' .852N. , 120° 55' .672E.

		14° 33' .910N. , 120° 56' .737E.

		14° 33' .908N. , 120° 54' .999E.

       15. * The existing anchor berths have been removed within an area bounded by the following positions:

		14° 34' .367N. , 120° 55' .933E.

		14° 34' .367N. , 120° 57' .050E.

		14° 34' .535N. , 120° 56' .925E.

		14° 34' .533N. , 120° 55' .783E.

       16. *Depths less than charted exist within anchorages and approaches to Manila North Harbour. The most significant are as follows:

		Depth		Position

		9·1m		14° 37' .212N. , 120° 55' .583E.

		7·3m		14° 37' .569N. , 120° 56' .122E.

		4·6m		14° 37' .769N. , 120° 56' .367E.

       17. *There have been changes to depths in the International Port Basin and Berth 6, 14° 36' .291N. , 120° 56' .985E. , has been extended south-eastwards.

       18. Mariners are advised to navigate with caution in the area and consult the local port authorities for the latest information.

       19. Charts 3931, 3932 and 4491 will be updated when full details are available.

       20. *Former Notices 1452(P)/23, 2587(P)/23, 5034(P)/23 and 4895(P)/24 are cancelled.

           *Indicates new or revised entry

           (WGS84 DATUM)